(67) njhopDl;gtpaYf;fhd tpQ;Qhdk; - alevelapi.com · f.ngh.j. (c.ju)g; guPl;ir - 2019 ,Yk; mjd; gpd;dUk; eilngWk; guPl;irfSf;fhd tpdhj;jhs; fl;likg;Gk; khjpup tpdhf;fSk; - njhopDl;gtpaYf;fhd

f.ngh.j. (c.ju)g; guPl;ir - 2019 ,Yk; mjd; gpd;dUk; eilngWk; guPl;irfSf;fhd tpdhj;jhs; fl;likg;Gk; khjpup tpdhf;fSk; - njhopDl;gtpaYf;fhd tpQ;Qhdk;

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(67) njhopDl;gtpaYf;fhd tpQ;Qhdk;

tpdhj;jhs; fl;likg;G

tpdhj;jhs; I - Neuk; : 02 kzpj;jpahyk;5 njupTfs; tPjkhd 50 gy;Nju;T tpdhf;fs;. vy;yh tpdhf;fSf;Fk; tpil vOj Ntz;Lk;. xU tpdhTf;F 02 Gs;spfs; tPjk; nkhj;jg; Gs;spfs; 100.

ghlj; JiwfSf;Nfw;g tpdhf;fs; gpupf;fg;gl;Ls;s tpjk; :• capupay; - 05 tpdhf;fs;• ,urhadtpay; - 13 tpdhf;fs;• jfty;> njhlu;ghly; njhopDl;gtpay; - 10 tpdhf;fs;• fzpjk; - 10 tpdhf;fs;• ngsjpftpay; - 12 tpdhf;fs;

tpdhj;jhs; II- Neuk; : 03 kzpj;jpahyk; (,jw;F Nkyjpfkhf thrpg;G Neuk; 10 epkplk;) ,t;tpdhj;jhs; A, B, C, D vd ehd;F gFjpfisf; nfhz;Ls;sJ.

gFjp Amikg;Gf; fl;Liu tif tpdhf;fs; ehd;F. vy;yh tpdhf;fSf;Fk; tpil vOj Ntz;Lk;.xU tpdhTf;F 100 Gs;spfs; tPjk; 400 Gs;spfs;.

ghlj; JiwfSf;Nfw;g tpdhf;fs; gpupf;fg;gl;Ls;s tpjk; : tpdh 1 - capupay; tpdh 2 - ,urhadtpay; tpdh 3 - ngsjpftpaYk; ,urhadtpaYk; tpdh 4 - ngsjpftpay;

gFjpfs; B, C, Dfl;Liu tif tpdhf;fs; ,uz;L tPjk; MW tpdhf;fs;. xU gFjpapypUe;J Fiwe;jgl;rk; xU tpdh tPjk; njupe;njLj;J ehd;F tpdhf;fSf;F tpil vOj Ntz;Lk;. xU tpdhTf;F 150 Gs;spfs; tPjk; 600 Gs;spfs;.

ghlj; JiwfSf;FNfw;g tpdhf;fs; gpupf;fg;gl;Ls;s tpjk; : gFjp B (tpdh 5 ck; tpdh 6 ck;& - fzpjk; gFjp C (tpdh 7 ck; tpdh 8 ck;& - ,urhadtpay; gFjp D (tpdh 9 ck; tpdh 10 ck;) - ngsjpftpay;

tpdhj;jhs; II ,w;F nkhj;jg; Gs;spfs; = 1000 ÷ 10 = 100

,Wjpg; Gs;spfisf; fzpj;jy; ( tpdhj;jhs; I = 100 tpdhj;jhs; II = 100 ,Wjpg; Gs;spfs; = 200 ÷ 2 = 100


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tpdhj;jhs; - ImwpTWj;jy;fs; : * vy;yh tpdhf;fSf;Fk; tpil vOJf.

* rupahd my;yJ kpfg; nghUj;jkhd tpiliaj; njupe;njLf;f. (gy;Nju;T tpdhf;fSf;F tpilaspg;gjw;Fupa jhs; toq;fg;gLk;.)

<u;it Mu;KLfy; = 10 m s-2

ePupd; mlu;j;jp = 1000 kg m-3

1. jhtuf; fyq;fspy; cs;s gpujhd Nrkpg;G czT (1) fpisf;Nfhrd; (2) khg;nghUs; (3) nrYNyhR (4) ifw;wpd; (5) ,ypf;fpdpd;

2. kJtk;> raNdhgw;wPupah> my;fh Mfpatw;Wf;Fg; nghJthd Xu; ,ay;ghtJ (1) Xu; xOq;fike;j fU ,Uj;jy; (2) xU FopaKjYU nkd;rt;T ,Uj;jy; (3) gr;iraTUtk; ,Uj;jy; (4) ,iokzp ,Uj;jy; (5) Xu; ,ioAUg; gjpa cly; ,Uj;jy;

3. gpd;tUk; ,ioaq;fspilNa ,ioa tsu;g;Gf;Fg; ngUk;ghYk; gad;gLj;jg;gLk; ,ioa tif ahJ?

(1) Nkw;gl;il (2) ikatpioak; (3) mbg;gil ,ioak; (4) cr;rpg; gpupapioak; (5) Nkw;Nwhy;

4. gpd;tUk; vt;tif kPd; Nghriz kw;Wk; kUe;J cw;gj;jp %ykhf Kf;fpaj;Jtk; tha;e;jJ? (1) jpUf;if (2) ghiu (3) mwf;Fsh (4) Rwh (5) nea;j;Njhyp

5. J}a njd;dk; ghzpapy; mjpf mstpy; ,Uf;Fk; nty;yj;jpd; tif ahJ? (1) FSf;NfhR (2) Rf;FNuhR (3) gpuw;NwhR (4) nlf;];NuhR (5) ,yw;NwhR

6. FbePu; milf;fg;gLk; gpshj;jpf;Fg; Nghj;jiy cw;gj;jp nra;tjw;Fg; ngUk;ghYk; gad;gLj;jg;gLk; gy;gFjpak; ahJ?

(1) PVC (2) PET (3) PP (4) PE (5) PS

7. ikaePf;fy; vd;gJ rtu;f;fhu cw;gj;jpr; nrad;Kiwapd; xU gbKiwahFk;. ,g;gbKiwapd; Fwpf;Nfhs; MtJ

(1) fpspruPid mfw;wy; (2) rpj;jpupf; mkpyj;ijf; fyj;jy; (3) <ur; rtu;f;fhuj;jpypUe;J cg;Gf; fiuriy mfw;wy; (4) <ur; rtu;f;fhuj;jpypUe;J cyu; rtu;f;fhuj;ijg; ngWjy; (5) rtu;f;fhuj;Jld; cg;igf; fyj;jy;

8. jPe;ij cw;gj;jpapy; nts;is epwj;ijg; ngWtjw;Fg; nghJthfg; gad;gLj;jg;gLk; epwg;nghUs; ahJ?

(1) CaCO3 (2) CaO (3) TiO2 (4) ZnO (5) MgO

9. gpd;tUk; gukhdq;fspilNa ePupd; epakj;ij msf;Fk; gukhdkhf mikahjJ (1) pH ngWkhdk; (2) flj;jhW (3) COD ngWkhdk; (4) ntg;gepiy (5) fyq;fw;wd;ik


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10. mkpy kio njhlu;ghd gpioahd $w;iwj; njupe;njLf;f. (1) mkpy kio Vw;gLtjpy; capu;r;Rtl;L vupnghUs; jfdk; nry;thf;Fr; nrYj;Jfpd;wJ. (2) mkpy kio fhuzkhf ePupd; pH ngWkhdk; mjpfupf;fpd;wJ. (3) mkpy kio fhuzkhf kz;zpd; mkpyj;jd;ik mjpfupf;fpd;wJ. (4) mkpy kio fhuzkhf ePupd; td;ik mjpfupf;fpd;wJ. (5) kio ePu; mkpykhtjpy; CO2 thA gq;fspg;Gr; nra;fpd;wJ.

11. thfdr; nrYj;Jif gpd;tUk; ve;jr; Rw;whlw; gpur;rpidapy; Fiwe;jstpy; gq;fspg;Gr; nra;fpd;wJ? (1) G+Nfhsk; ntg;gkhjy; mjpfupj;jy; (2) xspapurhadg; Gif cz;lhjy; (3) mkpy kio cz;lhjy; (4) XNrhd; tpjhdk; twpjhjy; (5) kz; khriljy;

12. gpd;tUk; $w;Wfisf; fUJf. A - Kjd;ik ePu;g; gupfupg;gpd; %yk; fopT ePupy; cs;s fopTg; nghUs; gFjpfs; mfw;wg;gLfpd;wd. B - Jiz ePu;g; gupfupg;gpd; %yk; fopT ePupy; cs;s Nrjdr; Nru;itfs; ePf;fg;gLfpd;wd. C - Row;rp KoT Kiw %d;whk; epiy ePu;g; gupfupg;gpd; xU tpjkhFk;. Nkw;Fwpj;j $w;Wfspy; rupahdJ/ rupahdit (1) A khj;jpuk; (2) B khj;jpuk; (3) C khj;jpuk; (4) A, B Mfpad khj;jpuk; (5) A, B, C Mfpa vy;yhk;

13. ,aw;if cw;gj;jpg; nghUs;fis Kjd;ik kw;Wk; Jiz mDNrgg; gjhu;j;jq;fs; vd ,U $l;lq;fshfg; gpupf;fyhk;. gpd;tUtdtw;wpy; vr;Nru;it Kjd;ik mDNrgg; gjhu;j;jkhFk;?

(1) gpstndhapl;L (2) ,ypg;gpl;Lfs; (3) [pd;[Nuhy; (4) rpdky;jpifl;L (5) A+[pNdhy;

14. Njapiyapy; mlq;Fk; Jiz mDNrgg; gjhu;j;jk; fNgd; MFk;. mr;Nru;it (1) czu;r;rpnfhy;ypahFk; (2) gw;wPupah nfhy;ypahFk; (3) RitaPl;bahFk; (4) cw;rhf%l;Lk; fUtpahFk; (5) typePf;fpahFk;

15. gpd;tUk; Kf;fpspriul;bid ftdj;jpw; nfhs;f.

H C O C (CH2)14 CH3

H O

H C O C (CH2)12 CH3

O

H C O C (CH2)10 CH3

O

H

NkYs;s Kf;fpspriul;L jfu;TWk;NghJ fpilf;Fk; xU $whf mikahj %yf;$W ahJ?

(1)

H C OH

H

H C OH

H C OH

H

(2) H C OH

H

H C H

H C OH

H

(3) CH3 (CH2)14 COOH

(4) CH3 (CH2)12 COOH (5) CH3 (CH2)10 COOH


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16. ePupy; fiuaj;jf;f tpw;wkpd; NrhbahdJ (1) A, B Mfpad (2) A, C Mfpad (3) A, D Mfpad (4) B, C Mfpad (5) B, D Mfpad

A

BC

D E

ntg;gepiy$K

Neuk;$s

17. xU jpz;k nkOFj; Jz;bw;F ntg;gj;ij toq;Fk;NghJ mjd; ntg;gepiy Neuj;Jld; khWk; tpjk; tiugpy; fhl;lg;gl;Ls;sJ. B ,ypUe;J C tiuf;Fk; eilngWk; ntg;g khw;wj;jpw;F toq;Fk; ngau; ahJ?

(1) cUfy; kiw ntg;gk; (2) jd;ntg;gf; nfhs;ssT (3) ntg;gf; nfhs;ssT (4) Mtpahfy; kiw ntg;gk; (5) jhf;f ntg;gk;

18. 2A + B → A2B Nkw;Fwpj;j jhf;fj;jpd; jhf;f tPjk; gw;wpf; fw;Fk;NghJ xU fzj;jpy; A nrytplg;gLk; tPjk;

0.6 mol dm-3 s-1 MFk;. mf;fzj;jpy; tpisnghUs; cz;lhFk; tPjk;

(1) -0.6 mol dm-3 s-1 (2) -0.3 mol dm-3 s-1 (3) 0.3 mol dm-3 s-1

(4) 0.4 mol dm-3 s-1 (5) 0.6 mol dm-3 s-1

19. 3 fpfhigw;W ^3 GB& MdJ vj;jid nkfhigw;W (MB) MFk;?

(1) 3 × 4 MB (2) 3 × 8 MB (3) 3 × 1000 MB (4) 3 × 1024 MB (5) 3 × 1024 × 1024 MB

20. gpd;tUk; $w;WfspilNa gpioahd $w;W ahJ? (1) ika Kiwtop myfpy; Kjy; epidtfk; cs;sJ. (2) Kjy; epidtfk; Jiz epidtfj;jpYk; ghu;f;ff; nfhs;jpwd; $baJ. (3) ika Kiwtop myfpw;Fj; Njitahd juTfs; Kjypy; ,Uf;fpd;wdth vd Kjy; epidtfj;jpy; ghu;f;fyhk;. (4) Kjy; epidtfj;ijg; Nghd;W Jiz epidtfKk; (volatile) mopaj;jf;fJ. (5) Kjy; epidtfj;jpd; fjp Jiz epidtfj;jpd; fjpapYk; $baJ.

21. xU fzj;jpy; gy nra;epuy;fis eilKiwg;gLj;jpdhy; xU jlit CPU ,y; xU nra;epuypd; Xu; mwpTWj;jy; khj;jpuk; eilKiwg;gLj;jg;gLk;. ,jpypUe;J njspthtJ gzpnray; Kiwikapd;

(1) rhjd Kfhik (2) nrad;Kiw Kfhik (3) Nfhg;G Kfhik (4) epidtf Kfhik

(5) fzpdp Kfhik

22. MS Word ,y; cs;s Change Case ,d; %yk; nra;a KbahjJ ahJ? (1) NgnuOj;ijr; rpw;nwOj;jhf khw;wy; (2) rpw;nwOj;ijg; NgnuOj;jhf khw;wy; (3) nrhy;ypd; Kjyhk; vOj;ij khj;jpuk; NgnuOj;jhf khw;wy; (4) vOj;Jfspd; msit khw;wy; (5) nrhw;fspd; Kjyhk; vOj;ij khj;jpuk; rpw;nwOj;jhf khw;wy;


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23.

Nkw;Fwpj;j tpupjhspy; C2 fyj;jpy; vOjg;gl;Ls;s rhu;G =$A$2 × B2 MFk;. ,J jtWjyhf C3 fyj;jpw;F efy; nra;ag;gl;lhy;> mjd; tpil ahJ?

(1) 50 (2) 70 (3) 80 (4) 125 (5) 185 24. thuj;jpd; ,Wjpapy; epkyd; Xa;T Neuj;ijg; gpd;tUkhW Kfhik nra;fpd;whd;. - Gj;jfk; thrpg;gjw;F 30% Neuk; - njhiyf;fhl;rpiag; ghu;g;gjw;F 5% Neuk; - tpisahLtjw;F 25% Neuk; - ,iriaf; Nfl;gjw;F 40% Neuk; ,t;tptuj;ij tifFwpg;gjw;F kpfg; nghUj;jkhd tiuG tif ahJ? (1) Neu;Nfhl;L tiuG (2) epuy; tiuG (3) tl;l tiuG (4) rpjwy; tiuG (5) ryhif tiuG

25. PowerPoint gltpy;iyapy; cs;s jfty;fis khw;Wjy;> Nru;j;jy;> mopj;jy; Nghd;w gzpfSf;F cfe;jJ ahJ?

(1) Normal view (2) Slide sorter view (3) Outline view (4) Slide show view (5) Full screen view

26. PowerPoint nkd;nghUisg; gad;gLj;jpr; nra;ag;gLk; Kd;itg;gpd; gltpy;iyf; fhl;rp eilngWifapy; (Slide Show) vOj;J B I mOj;Jk;NghJ

(1) jpiu ntz;zpwkhFk;. (2) jpiu fUik epwkhFk;. (3) jpiu ntwpjhFk;. (4) Kd;itg;G KbtilAk;. (5) ,Wjpg; gltpy;iy topg;gLj;jg;gLk;.

27. gpd;tUtdtw;wpy; vJ Njlw; nghwpahf ,Ug;gjpy;iy? (1) Yahoo (2) Google (3) Mozilla Firefox (4) Altavista (5) MSN

28. gpd;tUk; rhjdr; Nrhbfisf; fUJf. A - Keyboard, Light pen B - Screen, Joystick C - Barcode reader, Compact Disk D - Mouse, Track ball ,r;Nrhbfspy; cs;sPl;Lr; rhjdq;fs; (Input devices) khj;jpuk; ,lk;ngWk; tpiliaj; njupe;njLf;f. (1) A, B Mfpad (2) A, C Mfpad (3) A, D Mfpad (4) B, C Mfpad (5) C, D Mfpad

29. 29 cm rhAauKk; 21 cm mbahiuAk; cs;s xU jpz;kr; nrq;$k;gpypUe;J 7 cm mbahiuAk; 10 cm cauKk; cs;s Xu; cUis tbtg; gFjp ePf;fg;gl;Ls;sJ. vQ;rpa gFjpapd; fdtsT ahJ?

(1) 1400 cm3 (2) 1940 cm3 (3) 4300 cm3

(4) 6450 cm3 (5) 7700 cm3

30. xU Nfhsj;jpd; Miuia ,Uklq;fhf;Fk;NghJ mjd; fdtsT vj;jid klq;fpdhy; mjpfupf;Fk;? (1) ,Uklq;F (2) ehd;F klq;F (3) MW klq;F (4) vl;L klq;F (5) gd;dpuz;L klq;F


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rl

q

31. ,e;j Miur;rpiwapd; Rw;wsT (1) l + r + q (2) lq + r (3) 2(q + r) (4) r(q + 2) (5) 2(l + r)

Q

h

A B P

32. xU fpil epyj;jpd; kPJ cs;s cauk; h I cila xU fl;llk; PQ ,d; cr;rpapypUe;J ghu;f;Fk;NghJ Gs;sp A Nehf;fg;gLk; ,wf;ff; Nfhzk; 30° ck; Gs;sp B Nehf;fg;gLk; ,wf;ff; Nfhzk; 60° ck; MFk;. A ,w;Fk; B ,w;FkpilNa cs;s J}uj;ijf; fhl;Lk; Nfhit ahJ?

(1) h (√3 - 1 / √3 ) (2) h (1 - √2 ) (3) h (√3 - 1) (4) h (√3 - √2 ) (5) h (√3 / 2 - √2 )

33. fthd; tbtKs;s xU fjT epiyapd; tbtk; rhu;G y = −x2 + 4x − 1 ,dhy; tifFwpf;fg;gLfpd;wJ. epy kl;lk; x mr;nrdf; fUJk;NghJ epyk; njhlu;ghff; fjT epiyapd; cau;e;jgl;r cauk;

(1) 1 myF (2) 2 myFfs; (3) 3 myFfs; (4) 4 myFfs; (5) 5 myFfs;

0.5

0

10

20

30

40

50

60

80

15.5

30.5

70

5.5

10.5

20.5

25.5 tFg;G

vy;iyfs;

jpus; kPbwd; 34. xU $l;lkhf;fpa kPbwd; ml;ltizf;fhf

tiuag;gl;l mjpfupf;Fk; jpus; kPbwd; tisapAk; FiwAk; jpus; kPbwd; tisapAk; tiugpy; fhl;lg;gl;Ls;sd. ,f;$l;lkhf;fpa kPbwd; guk;gypd; ,ilaj;Jf;F kpfTk; cfe;j ngWkhdk;

(1) 10.5 (2) 15.5 (3) 20.5 (4) 24.0 (5) 25.5

35. xU gf;fj;jpd; ePsk; 1 cm MfTs;s 27 rpwpa rJuKfpfisg; gad;gLj;jp xU ngupa rJuKfp nra;ag;gl;Ls;sJ. xt;nthU Kfj;jpYk; eLtpy; cs;s rpwpa rJuKfpia mfw;Wk;NghJ nghUspd; Nkw;gug;gpd; gug;gsthtJ

(1) 27 cm2 (2) 54 cm2 (3) 60 cm2 (4) 72 cm2 (5) 78 cm2

h

5 cm

Miu= 7 cm

Miu= 14 cm

36. cUtpy; xU $k;gpd; xU gFjp fhl;lg;gl;Ls;sJ. mjd; nrq;Fj;J cauk; h ,d; ngWkhdk; (1) 2 cm (2) 3 cm (3) 4 cm (4) 5 cm (5) 10 cm

37. xU khztd; khjg; guPl;irfs; 9 ,y; ngw;w Gs;spfs; fPNo jug;gl;Ls;sd. 80, 85, 70, 75, 60, 90, 82, 74, 78 Nkw;Fwpj;j Gs;spfspd; tPr;Rk; fhyizapil tPr;Rk; KiwNa (1) 30, 11.5 (2) 30, 2.5 (3) 30, 4.5 (4) 25, 9 (5) 30, 7

38. xU NfhL PQ ,d; eLg Gs;sp R MFk;. P ,d; Ms;$W (3, 6) MfTk; R ,d; Ms;$W (5, 8) MfTk; ,Ug;gpd;> Gs;sp Q ,d; Ms;$W

(1) (4, 7) (2) (10, 7) (3) (7, 10) (4) (7, 4) (5) ( 32, 2)


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39. xU khztd; Xu; cNyhfj; jfl;bd; jbg;ig msg;gjw;F %d;W re;ju;g;gq;fspy; ngw;w mstPLfs; gpd;tUkhW:

Kjyhk; mstPL - 1.9 cm ,uz;lhk; mstPL - 20.1 mm %d;whk; mstPL - 19.83 mm Nkw;Fwpj;j thrpg;GfSf;Nfw;g mtd; KiwNa gad;gLj;jpAs;s msf;Fk; cgfuzk; (1) kPw;wu; tiuNfhy;> Ez;khdpj; jpUFf; fzpr;rp> Ntzpau; ,Lf;fp (2) kPw;wu; tiuNfhy;> Ntzpau; ,Lf;fp> Ez;khdpj; jpUFf; fzpr;rp (3) Ez;khdpj; jpUFf; fzpr;rp> Ntzpau; ,Lf;fp> kPw;wu; tiuNfhy; (4) Ntzpau; ,Lf;fp> Ez;khdpj; jpUFf; fzpr;rp> kPw;wu; tiuNfhy; (5) Ntzpau; ,Lf;fp> kPw;wu; tiuNfhy;> Ez;khdpj; jpUFf; fzpr;rp

0.1 × 1012

0.05 0.1

0.25 × 1012

,Oitj; jifg;G$N m-2

,Oit tpfhuk;

40. xU nky;ypa rPuhd fk;gpf;F xU Rikiag; gpuNahfpj;Jg; ngw;w thrpg;Gfisf; nfhz;L ,Oitj; jifg;Gf;Fk; ,Oit tpfhuj;Jf;FkpilNa tiuag;gl;l tiuG cUtpy; fhl;lg;gl;Ls;sJ. mf;fk;gpapd; aq;qpd; kl;L

(1) 0.5 × 1012 N m-2 (2) 1 × 1012 N m-2 (3) 2 × 1012 N m-2 (4) 2.5 × 1012 N m-2 (5) 4 × 1012 N m-2

01

1

x/N

F

y/N

2

2

3

3

4

4

5

41. xU nghUspd; kPJ x, y jpirfs; topNa jhf;Fk; ,U tpirfspd; tpisAs; tiugpy; fhl;lg;gl;Ls;sJ. tpisAspd; gUkid khw;whky; jpiriag; gpd;tUk; vk;Nkyjpf tpirr; Nrhbiag;

gpuNahfpg;gjd; %yk; khw;wyhk;?

tpir F1 tpir F

2

(1) x ,d; kiwj; jpirf;F 4 N y ,d; Neu;j; jpirf;F 2 N

(2) x ,d; kiwj; jpirf;F 4 N y ,d; Neu;j; jpirf;F 4 N

(3) x ,d; Neu;j; jpirf;F 2 N y ,d; kiwj; jpirf;F 4 N

(4) x ,d; kiwj; jpirf;F 4 N y ,d; kiwj; jpirf;F 8 N

(5) x ,d; Neu;j; jpirf;F 8 N y ,d; kiwj; jpirf;F 4 N

12 V

4 V, 0.2 A

R

L

42. xU Nkhl;lu; thfdj;jpd; kpd; Rw;wpd; xU gFjp cUtpy; fhl;lg;gl;Ls;sJ. mjpy; fhl;lg;gl;Ls;s Fkpo; L MdJ 4 V, 0.2 A vd tPjkhf;fg;gl;Ls;sJ. Fkpopy; fhl;lg;gl;Ls;s mNj Xl;lj;jpd; %yk; mjid xspur; nra;tjw;Fj; jil R ,w;F ,Uf;f Ntz;ba ngWkhdk; ahJ? (gw;wupapd; mfj; jiliag; Gwf;fzpf;f)

(1) 20 Ω (2) 40 Ω (3) 60 Ω (4) 80 Ω (5) 120 Ω

A

Y

d1

d2

X

B C

43. mlu;j;jp d1 IAk; mlu;j;jp d2 IAk; cila> xd;Nwhnlhd;W fythj ,U jputq;fs; xU Kfitapy; ,Uf;fpd;wd. Kfitapd; mbapypUe;J tpLtpf;fg;gLk; A, B, C vd;Dk; %d;W jpz;kf; Nfhsq;fs; nra;ag;gl;Ls;s jputpaq;fspd; mlu;j;jpfs; KiwNa dA, dB> dC MFk;. cupa jputpaq;fspdJk; jputq;fspdJk; mlu;j;jpfs; VWtupirapy; dC < dB < d1 < dA < d2 vdpd;

(1) Nfhsk; C khj;jpuk; Nkw;gug;G XY I Nehf;fpf; fpl;l te;J Xa;Tepiyia milAk;. (2) B, C Mfpa Nfhsq;fs; Nkw;gug;G XY I Nehf;fpf; fpl;ltUk; mNj Ntis Nfhsk; A ,U

jputq;fSf;FkpilNa epw;Fk;. (3) A, B Mfpa Nfhsq;fs; Nkw;gug;G XY I Nehf;fpf; fpl;l te;J Xa;T epiyia milAk;. (4) Nfhsk; C khj;jpuk; mbapy; ,Uf;Fk;.

(5) vf;NfhsKk; NkNy nry;ykhl;lhJ.


- 8 -

44. 60 kg jpzpTs;s xUtu; gbapd; cauk; 20 cm MfTs;s xU gbf;fl;by; 5 nrf;fdpy; 10 gbfspy; Vwp NkNy nry;fpd;whu;. mtUila tY ahJ? (GtpaPu;g;gpdhyhd Mu;KLfy; 10 m s-2 vdf; nfhs;f)

(1) 24 W (2) 120 W (3) 240 W (4) 520 W (5) 1200 W

45. fk;gsk; tpupf;fg;gl;Ls;s xU jiuapy; itf;fg;gl;bUf;Fk; 30 kg jpzpTs;s Nrhgh tOf;fpiag; gad;gLj;jp khwhf; fjp 0.4 m s-1 cld; js;sg;gLfpd;wJ. Nrhghtpd; ghjq;fSf;Ff; fPNo itf;fg;gl;Ls;s tOf;fpf;Fk; fk;gsj;Jf;FkpilNa ,af;f cuha;Tf; Fzfk; 0.08 vdpd;> Nrhgh kPJ gpuNahfpf;f Ntz;ba ntsp tpir ahJ?

(1) 2.4 N (2) 24 N (3) 30 N (4) 96 N (5) 300 N

46. 28 °C ntg;gepiyapy; cs;s 2 kg ePiuf; nfhjpepiy tiuf;Fk; ntg;gkhf;Ftjw;F xU kpd; Nfj;jYf;F 0.2 kW h kpd; rf;jp Njit. ePupd; jd;ntg;gf; nfhs;ssT 4200 J kg-1 K-1 vdpd;> Nfj;jy; njhopw;gLk; jpwd; ahJ?

(1) 42% (2) 54% (3) 50% (4) 72% (5) 84%

47. xU ePu;g; ghj;jpuj;jpy; xU ngd;rpiy epiyf;Fj;jhf itj;J tpLk;NghJ mJ ePu; Nkw;gug;G kPJ fpilahf kpjf;fpd;wJ. ngd;rpypd; fPo; Kidapy; ePupy; fiuahj xU fspkz; (Plastic Clay) jpuizia (cUz;il) xl;b tpLk;NghJ ngd;rpy; epiyf;Fj;jhf kpjf;fpd;wJ. ,t;thW eilngWfpd;wikf;Ff; fhuzk;

(1) fspkz; jpuiz xl;lg;gl;bUf;Fk;NghJ ngd;rpypd; epiw mjpfupf;fpd;wik. (2) fspkz; jpuiz xl;lg;gl;bUg;gjdhy; GtpaPu;g;G ikak; kPAe;jy; ikaj;jpw;Ff; fPNo xNu

epiyf;Fj;Jf; Nfhl;by; ,Uf;fpd;wik. (3) fspkz; jpuiz xl;lg;gl;bUg;gjdhy; kPAe;jy; ikak; GtpaPu;g;G ikaj;jpw;Ff; fPNo xNu

epiyf;Fj;Jf; Nfhl;by; ,Uf;fpd;wik. (4) fspkz; jpuiz fhuzkhf NkYijg;G Fiwfpd;wik. (5) fspkz; jpuiz fhuzkhf NkYijg;G mjpfupf;fpd;wik.

48. ghlrhiy Ma;$lj;jpy; gad;gLj;jg;gLk; xU njhLf;Fq; fk;gp xU fk;gpapd; jil 3 Ω MfTs;s 60 nky;ypa fk;gpfisf; nfhz;Ls;sJ. njhLf;Fq; fk;gpapd; nkhj;jj; jil ahJ?

(1) 120 Ω (2) 20 Ω (3) 40 Ω (4) 80 Ω (5) 180 Ω

49. td;dPiu ntg;gkhf;Ftjw;Fg; gad;gLj;jg;gLk; xU Nfj;jypy; Vwj;jho 2 mm jbg;Gs;s Xu; cg;Gg; gil gbe;Js;sJ. ,jd; tpisthf

(1) Nfj;jypd; jpwd; mjpfupf;fpd;wJ. (2) $Ljyhd ntg;gepiyapy; ePu; nfhjpf;fpd;wJ. (3) Fiwe;j ntg;gepiyapy; ePu; nfhjpf;fpd;wJ. (4) ePu; nfhjpg;gjw;F mjpf Neuk; vLf;fpd;wJ.

(5) Fiwe;j msT vupnghUs; Efug;gLfpd;wJ. 50. Xu; ,U rf;fuj; jpuhf;uupd; gwg;Gr; rpy;Y 20 mm tpl;lKs;s mr;rhzpAld; ,izf;fg;gl;Ls;sJ.

mr;rhzpapdJk; gwg;Gr; rpy;ypdJk; rlj;Jtj; jpUg;gk; 1.2 kg m2 MFk;. mr;rhzpiag; gw;wpr; Rw;wg;gl;l xU typikahd ,Nyrhd ,io kPJ xU 4.0 N tpiriag; gpuNahfpg;gjd; %yk; gwg;Gr;rpy;Y Royr; nra;ag;gLk;NghJ gwg;Gr; rpy;Yf;Ff; fpilf;Fk; Nfhz Mu;KLfy; ahJ?

(1) 0.03 (2) 0.04 (3) 0.30 (4) 4.80 (5) 5.00

* * *

12th Proof - 2018.07.26


- 9 -


tpdhj;jhs; IImwpTWj;jy;fs; :

* gFjp A ,d; vy;yh tpdhf;fSf;Fk; tpilfis ,j;jhspNyNa vOJf.

* B, C, D Mfpa gFjpfspy; xU gFjpapypUe;J Fiwe;jgl;rk; xU tpdh tPjk; njupT nra;J ehd;F

tpdhf;fSf;F khj;jpuk; tpil vOJjy; Ntz;Lk;.

gFjp A - mikg;Gf; fl;Liu tpdhf;fs;

1. (a) (i) Ez;zq;fpfisg; Nguq;fpfspypUe;J NtWgLj;jp ,dq;fhzj;jf;f rpwg;gpay;igf; Fwpg;gpLf.

..............................................................................................................................................

(ii) njhopDl;gtpay; cw;gj;jpf;fhf Ez;zq;fpfisg; gad;gLj;Jtjd; %d;W mD$yq;fisf; Fwpg;gpLf.

.............................................................................................................................................. .............................................................................................................................................. ..............................................................................................................................................

(iii) japu; cw;gj;jp> tpdhfpup cw;gj;jp Mfpad Ez;zq;fpfs; gad;gLj;jg;gLk; ,U ifj;njhopy;fshFk;. Nkw;Fwpj;j xt;Nthu; cw;gj;jpr; nrad;KiwapYk; Ez;zq;fpj; njhopw;ghl;bd; Kd;dpiyapy; eilngWk; ,urhad khw;wk; tPjk; vOJf. mj;jhf;fq;fs; xt;nthd;WlDk; njhlu;GgLk; Ez;zq;fpf; $l;lj;ijAk; Fwpg;gpLf.

.............................................................................................................................................. ..............................................................................................................................................

(iv) tskhf;fpahfr; Nrjdf; fopTg;nghUs;fisg; gad;gLj;jy; ,urhad tskhf;fpfspd; gad;ghl;bid ,optsthf;Ftjpy; Kf;fpaj;Jtk; tha;e;jJ. Ez;zq;fpfspd; njhopw;ghl;ilg; gad;gLj;jpr; rpf;fyhd Nrjdf; fopTg; nghUs;fisr; Nrjd tskhf;fpahf khw;Wk;NghJ gpd;tUk; Ez;zq;fpfs; xt;nthd;wpdhYk; nra;ag;gLk; ,urhad khw;wj;ij xU rkd;ghl;bidf; nfhz;L vOJf.

(a) Nitrosomonas ................................................................................................. (b) Nitrobacter .................................................................................................

(b) (i) ,yq;ifapy; jw;NghJ cs;s fhLfspd; vz;zpf;if Vwj;jho 21% MFk;. ,r;rjtPjj;ij Vwj;jho 35% tiuf;Fk; $l;lNtz;Lnkdr; Rw;whlypayhsu;fs; fUJfpd;wdu;. mt;thW nra;tjd; ,U Kf;fpa mD$yq;fisf; Fwpg;gpLf.

.............................................................................................................................................. ..............................................................................................................................................

(ii) xUtpj;jpiyj; jhtuj;jpw;Fk; ,Utpj;jpiyj; jhtuj;jpw;FkpilNa cs;s ,U cUttpay; NtWghLfisf; Fwpg;gpLf.

.............................................................................................................................................. ..............................................................................................................................................

(iii) xUtpj;jpiyj; jhtuj; jz;Lfs; gy;NtW nghUshjhug; gad;ghLfSf;fhfg; gad;gLj;jg;gLk; ,U tpjq;fis cjhuzq;fSld; vOJf.

.............................................................................................................................................. ..............................................................................................................................................

(iv) ku kpd; fk;gq;fSf;fhfg; gad;gLj;jj;jf;f Xu; ,Utpj;jpiyj; jhtuj; jz;by; ,Uf;f Ntz;ba ,U Kf;fpa ,ay;Gfisf; Fwpg;gpLf.

.............................................................................................................................................. ..............................................................................................................................................


- 10 -

(c) (i) Njid my;yJ Njd; nkOifg; ngWtjw;F Nkyjpfkhfj; NjdP tsu;g;G tptrhag; nghUshjhuj;jpw;F Kf;fpaj;Jtk; tha;e;jjhf ,Uf;Fk; tpjj;ijf; Fwpg;gpLf.

.............................................................................................................................................. .............................................................................................................................................. .............................................................................................................................................. ..............................................................................................................................................

(ii) Njdpy; cs;s Kf;fpa fhNghitjNuw;wpd; tifiaf; Fwpg;gpLf.

..............................................................................................................................................

2. rPdp cw;gj;jpf; ifj;njhopypy; vQ;rpapUf;Fk; ghzp kz;bapy; cs;s rPdpia tPo;gbthf;Ftjw;fhd gbKiw ];nughd; nrad;Kiw vdg;gLk;. Fspu;r;rpahf;fp Cooler& vdg;gLk; cgfuzj;jpy; ,j;jhf;fk; eilngWk;. ,q;F ghzp kz;bapy; cs;s rPdp (Rf;FNuhR) fy;rpaQ; rf;fNuw;Wr; Nru;itahf tPo;gbthfpd;wJ. Fspu;r;rpahf;fpapDs;Ns Ijhd ghzp kz;bapd; Nghjpa fdtsit ,l;l gpd;du; eilngWk; nrad;Kiw RUf;fkhfg; gpd;tUkhwhFk;.

• Xu; Xl;bapd; ^Propeller& %yk; fiuriyj; njhlu;r;rpahff; fyf;Fjy;. • Vwj;jho 15 epkplq;fspy; cyu; ePwhj Rz;zhk;ig (CaO) xOq;fhff; Fspu;r;rpahf;fpAld; Nru;j;jy;.

î& Fspu;r;rpahf;fpapy; Rf;FNuhR tPo;gbthtjd; xU jhf;fk; fPNo jug;gl;Ls;sJ. jhf;fj;ijr; rkepiyg;gLj;Jtjw;fhf x ,w;F cfe;j vz;iz vOJf.

x CaO(s) + C12H22O11(aq) → C12H22O11. 3CaO(s)∆H=+0.2 kJ mol-1

x =......................................................

îi& Fspu;r;rpahf;fpAld; Nru;f;fg;gLk; ePwhj Rz;zhk;G ePUld; jhf;fk;GupAk;.

CaO(s) + H2O(l) Ca(OH)2(aq) ∆H=-63.7 kJ mol-1

ePwhj Rz;zhk;igr; Nru;f;Fk;NghJ Fspu;r;rpahf;fpapy; ntg;gepiy vj;jifa khw;wj;jpw;F cl;gLk;?

................................................................................................................................................... ...................................................................................................................................................

îii& Fspu;r;rpahf;fpAld; xU jlit ghzp kz;bAld; $ba Ijhd fiurypd; l m3 Nru;f;fg;gLk;. mjpy; mlq;Fk; Rf;FNuhRr; rPdpia tPo;gbthf;Ftjw;Fg; Nghjpa msT ePwhj Rz;zhk;G Fspu;r;rpahf;fpapy; Nru;f;fg;gl;lJ. Nru;f;fg;gl;l ePwhj Rz;zhk;gpy; CaO ,d; 11.2 kg ,Ue;jJ. me;j msT CaO MdJ ePUld; GupAk; jhf;fj;Jld; njhlu;Ggl;l ntg;g khw;wj;ijf; fzpf;f.

(O=16,Ca=40) ................................................................................................................................................... .................................................................................................................................................. ...................................................................................................................................................

îv& NkNy (iii) ,w; Fwpg;gpl;l ntg;g khw;wk; fhuzkhff; Fspu;r;rpahf;fpapy; cs;s fiurypd; ntg;gepiy vt;tsT khw;wj;jpw;F cl;gLk;? (cgfuzj;jpdhy; cwpQ;rg;gLk; ntg;gj;jpd; msT Gwf;fzpf;fj;jf;f mstpw;Fr; rpwpajhFk;.) fiurypd; jd;ntg;gf; nfhs;ssTk; mlu;j;jpAk; ePupd; mg;ngWkhdq;fSf;Fr; rknkdf; nfhs;f. (ePupd; jd;ntg;gf; nfhs;ssT = 4200 J kg-1 °C-1" ePupd; mlu;j;jp = 1000 kg m-3 )

................................................................................................................................................... ................................................................................................................................................. ...................................................................................................................................................

^v& NkNy (iv) ,y; cs;s fzpg;gpy; ePu; nra;j NtNwhu; vLNfhisf; Fwpg;gpLf. ................................................................................................................................................... .................................................................................................................................................


- 11 -

^vi& Fspu;r;rpahf;fpAld; ePwhj Rz;zhk;igr; Nru;f;Fk; nrad;Kiwapy; fiurypd; ntg;gepiyia ,ad;wtiu xU jho;e;j ngWkhdj;jpy; Ngzy; cau; tpisnghUisg; ngWtjpy; mj;jpahtrpakhFk;. cau; tpisnghUisg; ngWtjpy; mj;jhf;f epiyikfs; vq;qdk; gq;fspg;Gr; nra;Ak;?

................................................................................................................................................... ................................................................................................................................................. ...................................................................................................................................................

^vii& ghzp kz;bapd; rk fdtsTfis ntt;Ntwhf %d;W re;ju;g;gq;fspy; Fspu;r;rpahf;fpapy; ,l;L> xt;nthU re;ju;g;gj;jpYk; xd;wpypUe;njhd;W NtWgl;l gUkd;fs; cs;s %d;W ePwhj Rz;zhk;G khjpupfspd; rk jpzpTfs; mtw;Wld; Nru;f;fg;gl;ld. ntg;gepiyia khwpypahfg; Ngzpf; nfhz;L xU khwh Neuj;jpw;Fg; gpd;du; xt;nthU re;ju;g;gj;jpYk; Nru;e;j tPo;gbTj; jpzpTfs; gpd;tUk; ml;ltizapy; jug;gl;Ls;sd.

Nru;j;j ePwhj Rz;zhk;Gj; Jzpf;iffspd; gUkd;$μm 1 - 100 400-500 900 - 1000

xU khwh Neuj;jpy; gbe;j tPo;gbtpd; jpzpT$kg 5.61 5.10 4.63

^1& tPo;gbthFk; jhf;fk; ve;jg; gUkd; cs;s ePwhj Rz;zhk;Gj; Jzpf;iffs; Nru;f;fg;gl;l re;ju;g;gj;jpy; $Ljyhd tPjj;jpy; eilngw;wJ?

.......................................................................................................................................... ^2& Nkw;Fwpj;j %d;W re;ju;g;gq;fspYk; fpilj;j tPo;gbTj; jpzpTfs; xd;wpypUe;njhd;W

NtWgLjy; gw;wpa mtjhdpg;ig ,af;fg;ghl;L ,urhadtpaypd; mwpitg; gad;gLj;jp tpsf;Ff.

......................................................................................................................................... .......................................................................................................................................... ..........................................................................................................................................

^3& NkNy (vii) ,y; tptupj;jthNw ePwhj Rz;zhk;Gld; Nru;j;j NtW %d;W re;ju;g;gq;fspy; gbe;j tPo;gbTj; jpzpTfs; ml;ltizapy; Fwpg;gpl;l mstpYk; ghu;f;fg; ngupJk; Fiwthf ,Ue;jd. mf;Fiwtpy; nry;thf;Fr; nrYj;jj;jf;f ,U njhopDl;gtpay; tOf;fisf; Fwpg;gpLf.

.......................................................................................................................................... .......................................................................................................................................... ..........................................................................................................................................

^viii& jhf;f ntg;gj;ijf; Fspu;r;rpahf;fpapypUe;J ntw;wpfukhf ntspNaw;wy; ];nughd;

nrad;Kiwapd; ntw;wpapy; ngupJk; nry;thf;Fr; nrYj;Jfpd;wJ.

^1& Nkw;Fwpj;j epge;jidia ed;whfg; g+u;j;jp nra;AkhW Fspu;r;rpahf;fpiar; nra;tjw;Fg;

gad;gLj;jj;jf;f xU jputpaj;ijf; Fwpg;gpLf. ..........................................................................................................................................

^2& Fspu;r;rpahf;fpapd; %yk; ntg;g ntspNaw;wiyj; jpwikahfr; nra;tjw;F mjd; ntsp Nkw;gug;igr; Rw;wp ePu; Rw;wpNahlr; nra;ag;gLk;. xU Fspuhf;fpahf ePiu ,Ltjd; ,U

mD$yq;fisf; Fwpg;gpLf. .......................................................................................................................................... .......................................................................................................................................... ..........................................................................................................................................


- 12 -

3. (A) (a) capUs;s cly;fspy; cw;gj;jp nra;ag;gLk; ve;jr; Nrjd %yf;$Wk; capu;%yf;$W MFk;. mq;fpfspy; eilngWk; vy;yh capupurhadr; nrad;KiwfSf;Fk; capu;%yf;$W mbg;gilahFk;.

(i) capu;%yf;$Wfs; njhlu;ghfg; gpd;tUk; ml;ltiziag; G+uzg;gLj;Jf.

capu;%yf;$W

$w;W %yfq;fs;,dq;fhz;gjw;Fg; gad;gLj;jg;gLk; Nrhjidg; nghUs;

Nrhjidg;nghUis ,Lk;NghJ eilngWk; epw

khw;wk;

FSf;NfhR ............................... ............................... ............................................Gujq;fs; ............................... ............................... ............................................,ypg;gpl;Lfs; ............................... ............................... ............................................

(ii) ghypy; cs;s Kf;fpa rPdp tifapd; xU %yf;$wpd; fl;likg;G fPNo jug;gl;Ls;sJ. mjidf; Fwpg;gpLf.

OH OH

OHC C

CH H

H

CH2OH

CH

HCOH

O

C O C

H

OHCH

H

H

CH2OHC

HCOH

O

.........................................................................................................................................

(iii) Nkw;Fwpj;j %yf;$iwj; Jzptjpy; gq;fspg;Gr; nra;Ak; xUrf;fiul;L %yf;$w;Wr; NrhbfSf;fpilNa Vw;gl;Ls;s ,urhadg; gpizg;igf; Fwpg;gpLf.

.........................................................................................................................................

(iv) Nkw;Fwpj;j %yf;$iw ePu;g;gFg;Gr; nra;Ak;NghJ fpilf;Fk; xUrf;fiul;Lfisf; Fwpg;gpLf.

......................................................................................................................................... .........................................................................................................................................

(v) tpyq;Ffspy; rf;jpiaj; Njf;fp itf;Fk; fpisf;Nfhrdpy; $Ljyhf mlq;fpf; fpisnfhz;bUf;Fk; capu;%yf;$w;W tiff;F toq;Fk; ngau; ahJ?

.........................................................................................................................................

(b) (i) Gujq;fspd; fl;likg;G myF %yf;$WfSf;Fg; nghJthf toq;Fk; ngau; ahJ?

.........................................................................................................................................

(ii) Gujq;fspilNa clypd; mq;fq;fspd; fl;likg;igr; nra;tjw;F Kf;fpakhd> ePupy; fiuahj Guj tif ahJ?

.........................................................................................................................................

(iii) nehjpak; vd;gJ tpNrl ,ay;Gfs; cs;s GujkhFk;. nehjpaj;jpd; rpwg;gpay;G ahJ?

......................................................................................................................................... ......................................................................................................................................... .........................................................................................................................................

(iv) Foe;ijfSf;fhd czT cw;gj;jpapy; Gujq;fspd; Kw;rkpghl;Lf;Fg; GnwhupNa]; gpuNahfpf;fg;gLfpd;wJ. GnwhupNarpd; njhopw;ghl;il khw;wj;jf;f ,U fhuzpfisf; Fwpg;gpLf.

......................................................................................................................................... .........................................................................................................................................


- 13 -

(B) jpUg;gr; rkepiyf; Nfhl;ghl;ilg; gad;gLj;jp Xu; ,Uk;Gj; Jz;bd; jpzpitf; fhz;gjw;fhfg; gpd;tUk; nghUs;fs; ck;kplk; toq;fg;gl;Ls;sd.

• xU kPw;wu;f; Nfhy; • E}y; Jz;Lfs; • xU gbf;fw; ngl;b ^10 g,50 g,100 g& • ,Uk;Gj; Jz;L • xU jhq;fpapy; nghUj;jg;gl;l xU fj;jp tpspk;G

(i) gbf;fy;ypd; epiw W1 MfTk; ,Uk;Gj; Jz;bd; epiw W2 MfTk; fj;jp tpspk;gpypUe;J gbf;fy;ypd; J}uk; l1 MfTk; ,Uk;Gj; Jz;Lf;F cs;s J}uk; l2 MfTk; ,Ug;gpd;> ,j;jfty;fisg; gad;gLj;jp xOq;fikg;gpd; gUk;gbg; glj;ij tiuf.

(ii) ,jw;fhf xU kPw;wu;f; Nfhiyg; gad;gLj;Jtjd; ,U mD$yq;fisf; Fwpg;gpLf.

.............................................................................................................................................. ..............................................................................................................................................

(iii) kPw;wu;f; Nfhypd; ve;j ,lj;jpy; fj;jpapd; tpspk;G itf;fg;gLk;?

..............................................................................................................................................

(iv) rkepiyr; re;ju;g;gj;jpw;F W1" W2" l1 > l2 Mfpatw;Wf;fpilNa cs;s njhlu;igf; fhl;Lk; rkd;ghl;il vOJf.

..............................................................................................................................................

(v) ,Uk;Gj; Jz;bd; jpzpit tiuGKiwahfg; ngWtjw;F NkNy (iv) ,w; ngw;w rkd;ghl;il kWgbAk; jahu;nra;J vOJf.

.............................................................................................................................................. .............................................................................................................................................. (vi) ,Uk;Gj; Jz;bd; jpzpT Vwj;jho 40 g vdpd;> ck;kplk; jug;gl;Ls;s gbf;fw;fspy; vjidj;

njupe;njLg;gPu;? mjw;Fupa fhuzq;fis vOJf.

............................................................................................................................................. ..............................................................................................................................................

(vii) l1> l2 Mfpatw;Wf;Ff; fpilj;j rpy ngWkhdq;fs; gpd;tUk; ml;ltizapy; jug;gl;Ls;sd.

l1 /cm l2 /cm

1020304044

1218334148

00 3010 20 40 50

10

00

50

30

20

40

l1/cm

l2/cm


-14-

Nkw;Fwpj;j ml;ltizf;Nfw;g tiuag;gl;l tiuG cUtpy; fhl;lg;gl;Ls;sJ. tiuigf;

nfhz;L ,Uk;Gj; Jz;bd; jpzpitf; fhzpf;f.

............................................................................................................................................. ............................................................................................................................................. ..............................................................................................................................................

cNyhfg; gPg;gh Â&

gyifj; jl;L ^B&kzw; Ftpay;4. (a) Xu; Mw;wpypUe;J vLf;fg;gLk; kziyf;

Ftpg;gjw;Fg; gad;gLj;jg;gLk; njg;gk; (barge) cUtpy; fhl;lg;gl;Ls;sJ.

(i) ,q;F A ,dhy; cNyhfg; gPg;ghf;fs;

fhl;lg;gl;Ls;sd. mjw;Fg; gad;gLj;jj;jf;f NtW ,U gpujpaPl;Lg; nghUs;fisf; Fwpg;gpLf.

....................................................... .......................................................

(ii) Nkw;Fwpj;j njg;gj;ijr; nra;tjw;Fg; gad;gLj;jg;gl;l xU gPg;gh kPJ cs;s cau;e;jgl;r NkYijg;G 1.2 × 104 N MFk;.

(1) njg;gj;Jf;Fg; gad;gLj;jg;gl;Ls;s 8 gPg;ghf;fspd; kPJk; gpuNahfpf;fg;gLk; cau;e;jgl;r NkYijg;G ahJ?

....................................................................................................................................... .......................................................................................................................................

(2) gyifj; jl;bd; jpzpT Gwf;fzpf;fj;jf;fnjdpd;> mkpohky; kpjf;FkhW 8 gPg;ghf;fspd; kPJk; Vw;wj;jf;f cau;e;jgl;rj; jpzpT ahJ?

....................................................................................................................................... .......................................................................................................................................

(3) ,j;jifa xU jl;il cw;gj;jpnra;Ak;NghJ Nkyjpf kziy Vw;Wtjw;Fg; gad;gLj;j Ntz;ba Xu; cj;jpia vOJf.

....................................................................................................................................... .......................................................................................................................................

(iii) flw;fiuf;F mz;ikapy; xU fl;llj;ij mikg;gjw;F Mw;W topNa ,j;njg;gj;jpy; kz; nfhz;L tug;gLfpd;wJ. mg;NghJ flw;fiuf;F mz;ikapy; tUk;NghJ njg;gk; mkpOk;

msT Fiwtjhfj; njupfpd;wJ. ,J Vndd tpsf;Ff.

.............................................................................................................................................. .............................................................................................................................................. ..............................................................................................................................................

(b) (i) xU jputj;jpD}lhf mKf;fk; CLflj;jg;gLjy; gw;wpa g];fhypd; Nfhl;ghl;il vOJf.

.............................................................................................................................................. ..............................................................................................................................................


- 15 -

(ii) xU Nkhl;lu; thfdj;jpd; jLg;Gj; brake& njhFjp njhopw;gLk; tpjk; cUtpy; fhl;lg;gl;Ls;sJ.

F1=44 NF2

A1=1.8 cm2

A2=7.2 cm2

jLg;G kpjpg;gb

jiyik cUis Â&

jLg;G cUis ^B&

rpy;Yf; Flk; ^Wheel drum&

jLg;G kpjpg;gb kPJ xU tpir F1 Ig; gpuNahfpf;Fk;NghJ cUis B ,y; cs;s Kryj;jpd;

kPJ jhf;Fk; tpir F2 Mf ,Uf;Fk; mNj Ntis mJ jLg;Gj; jpz;bD}lhfr; rpy;ypd; cl;gug;Gf;Fr; nrt;tdhfj; jhf;Fk;.

(1) jLg;Gj; jpz;L kPJ jhf;Fk; tpir F2 If; fzpf;f.

....................................................................................................................................... ....................................................................................................................................... .......................................................................................................................................

(2) rpy;Yf;Fk; jpz;Lf;FkpilNa cs;s cuha;Tf; Fzfk; 0.5 vdpd;> rpy;Y kPJ nrt;tdhf

tpir F2 jhf;Ffpd;wikahy; rpy;Y kPJ jhf;Fk; njhLif cuha;T tpiriaf; fhz;f.

....................................................................................................................................... ....................................................................................................................................... .......................................................................................................................................

(3) rpy;ypd; Miu 34 cm vdpd;> rpy;Y kPJ jhf;Fk; cuha;T KWf;Fjpwidf; fhz;f.

....................................................................................................................................... ....................................................................................................................................... .......................................................................................................................................

(4) mKf;f CLflj;jypd; %yk; xU tpirapd; gUkid mjpfupg;gjw;fhfj; njhopw;gLk;

NtW ,U cgfuzq;fis vOJf.

....................................................................................................................................... .......................................................................................................................................

(5) cUisapy; gpuNahfpf;fg;gLk; jputj;jpw;Fg; gjpyhf xU thAitg; gpuNahfpf;f KbAkh? ckJ tpilia tpsf;Ff.

....................................................................................................................................... ....................................................................................................................................... .......................................................................................................................................

(6) xU tpirapd; gUkidf; $l;Ltjw;Fg; gad;gLj;jg;gLk; NtnwhU Nfhl;ghl;ilf; Fwpg;gpLf.

.......................................................................................................................................

* *


- 16 -

gFjp B - fl;Liu tif

5. xU rpwpa Milj; njhopw;rhiyapy; Nritahw;Wk; 25 njhopyhsu;fspd; xU ehl; rk;gsk; &ghapy; fPNo jug;gl;Ls;sJ.

130,63,145,120,125,80,150,141,110,100,65,110,106,103,70,85,80,130,125,95,62,100,130,130,70

(a) î& Nkw;Fwpj;j juTg; ge;jpiaf; nfhz;L njhopyhsu;fspd; xU ehl; rk;gsj;jpd; cz;ikahd

,iliaf; fzpf;f.

îi& mt;tr; rk;gs vy;iyfSf;fhf xU ehSf;F toq;Fk; cgfhug; gb ,lk;ngWk; Xu; ml;ltiz fPNo jug;gl;Ls;sJ. Nkw;Fwpj;j rk;gsq;fisg; gad;gLj;jp mt;tl;ltiziag;

G+uzg;gLj;Jf.

rk;gsk; (tFg;ngy;iy)

cgfhug; gb(&.)

njhopyhsu; vz;zpf;if

tFg;ngy;iyeLg;

ngWkhdk;jpus; kPbwd;

61 - 8081 - 100

101 - 120121-140141-160

1015202530

îii& Nkw;Fwpj;j ml;ltiziaf; nfhz;L njhopw;rhiyapd; njhopyhsu;fspd; jpdrupr; rk;gs

,iliaf; fzpf;f.

îv& NkNy (a)î& ,Yk; (a) îii& ,Yk; ,ilfSf;fpilNa cs;s tpj;jpahrj;jpw;Ff; fhuzk;

ahJ?

^v& Nkw;Fwpj;j rk;gsq;fSf;fhff; Fiwe;j jpus; kPbwd; tisapiaj; jug;gl;l tiuGj; jhspy; tiuf.

^vi& Nkw;Fwpj;j jpus; kPbwd; tisap kPJ rjtPjj; jpus; kPbwd; mr;ir tiugpd; tyg;

gf;fj;jpy; tiuf.

^vii& tiuigg; gad;gLj;jp &. 90. 50 ,Yk; Fiwthfr; rk;gsk; ngWk; njhopyhsu;fspd;

rjtPjj;ijAk; njhopyhsu;fspd; vz;zpf;ifiaAk; fhz;f.

(b) î& njhopw;rhiyapd; xU njhopyhsupd; xU ehs; cgfhug; gbapd; Mfhuj;ijf; fhz;f.

îi& NkNy ePu; ngw;w Mfhuj;jpdhy; fUjg;gLtJ ahJ?

îii& cgfhug; gbapd; ,iliaf; fhz;f.

(c) î& xU njhopyhsu; xU khjj;jpy; 20 ehl;fs; Nritapy; <LgLfpd;whu;. njhopyhsupd; jpdrup ,ilr; rk;gsj;ijAk; cgfhug; gbapd; ,iliag; gad;gLj;jp xU khjj;jpy; njhopyhsu;

ngWk; cz;ikahd ,il tUkhdj;ijAk; fhz;f.

îi& njhopyhsu;fspd; rk;gsj;jpw;fhfTk; cgfhug; gbf;fhfTk; nrytplg;gLk; nkhj;jg; gzj;ijf;

fhz;f.


- 17 -

B

O 60°

D

C7 cm

6. (a) xU fljhrpapypUe;J ntl;lg;gl;l Xu; cilapd; mbg;gil khjpupAU xd;W cUtpy; fhl;lg;gl;Ls;sJ. cUtpy; cs;s juTfisg; gad;gLj;jpg; gpd;tUtdtw;iwf; fzpf;f.

î& miutl;lk; BCD ,d; Miu

îi& mbg;gil khjpupapd; Rw;wsT

îii& mbg;gil khjpupapd; gug;gsT

P

X Y

Q R5 m

100 m

gliy

cU (1)

(b) Xu; myq;fhuj; Njhl;lj;ij mikg;gjw;fhf tPl;Lj;Njhl;l myq;fhuk; njhlu;ghf xU tiuQu; njupe;njLj;j rkgf;f

Kf;Nfhz epyj; Jz;L PQR cUtpy; fhl;lg;gl;Ls;sJ.

î& gliy cl;gl Ntypapd; KO ePsj;ijAk; fzpf;f.

îi& xt;nthU 5 m ,w;Fk; xU nfhq;fpwPw;Wf; fk;gk;; tPjk; ,Ltjw;F cj;Njrpj;jpUe;jhy;> mjw;Fj; Njitahd nfhq;fpwPw;Wf; fk;gq;fspd; vz;zpf;ifiaf;

fzpf;f.

îii& fhzpapd; gug;gsitf; fzpf;f.

cU (2) X

P

Y

ghJfhg;GNtyp

Foha;fs; Foha;fs;

(c) cU (1) ,y; Fwpg;gpl;l fhzpapy; %iy P ,y; 12.83 m3

nfhs;ssTs;s xU jlhfj;ij cU (2) ,y; cs;sthW mikg;gjw;F cj;Njrpf;fg;gl;Ls;sJ. vQ;rpa gFjpapy; Gw;fisg; gjpj;J myq;fupg;gjw;Fk; cj;Njrpf;fg;gl;Ls;sJ. ,f;fhzpapd; fpilg;glk; Xu; myF 7 m MfTs;s Xu; Ms;$w;Wj; jsj;jpy; ,Uf;Fk; xU efug; glj;jpy; fhl;lg;gl;Ls;sJ. mjw;Nfw;g P> X Mfpa Gs;spfspd;

Ms;$Wfs; KiwNa (1,7), (1,6)MFk;.

î& jlhfj;jpd; Miu PX If; fzpf;f.

îi& jlhfj;jpd; mbapd; gug;gsitf; fzpf;f.

îii& jlhfj;jpd; Moj;ijf; fzpf;f.

îv& Gw;fisg; gjpg;gjw;Ff; Fwpj;j cU (1) ,y; vQ;rpapUf;Fk; gFjpapd; gug;gsitf; fzpf;f.

^v& jlhfj;jpy; mikg;gjw;Fupa ghJfhg;G Ntypapd; ePsj;ijf; fzpf;f.

^vi& xU Fohapd; FWf;Fntl;Lg; gug;gsT 10 cm2 MfTs;s ehd;F Foha;fspD}lhf ,j;jlhfj;jpw;F 2 m s-1 fjpapy; ePu; gha;fpd;wJ. jlhfj;jpy; ePiu epug;Gtjw;F vLf;Fk;

Neuj;ijf; fzpf;f.

^π =227 , √3 =1.7,√2 =1.4vdf; nfhs;f.&

gFjp C - fl;Liu tif

7. (a) ifj;njhopy;fSf;Fj; Njitahd rf;jpj; Njitfisg; G+u;j;jp nra;tjw;F epyf;fupAk;

ngw;Nwhypa vupnghUs;fSk; gad;gLj;jg;gLfpd;wd.

î& epyf;fupj; jfdj;jpd;NghJ tspAld; NrUk; ,U Kf;fpa gpujp$ykhd thAf;fisf;

Fwpg;gpLf.

(ii) Nkw;Fwpj;j xt;nthU thA fhuzkhfTk; cz;lhFk; Rw;whlw; gpur;rpid tPjk; Fwpg;gpLf.

(iii) ngw;Nwhypa vupnghUisg; gad;gLj;jp thfdj;ijr; nrYj;Jk;NghJ tspAld; NrUk; ghjf

thAg; Ngjq;fs; Ie;ijf; Fwpg;gpLf.

(iv) ngw;Nwhypa vupnghUs; jfdj;jpy; ntsptplg;gLk; thAg; Ngjq;fspy; xspapurhadg;

Giff;F VJthd ,U Ngjq;fisf; Fwpg;gpLf.


- 18 -

(b) ngw;Nwhypa vupnghUs; GJg;gpf;f Kbahj tYr; rf;jpg; NgjkhFk;. mjw;Fg; gjpyhfg; gad;gLj;jj;jf;f jhtu vz;nzapd; %yk; cw;gj;jp nra;aj;jf;f xU GJg;gpf;fj;jf;f xU

tYr; rf;jpg; Ngjk; capu;j;jPryhFk;.

î& jhtu vz;nzapd; %yk; capu;j;jPry; cw;gj;jpr; nrad;Kiwapy; eilngWk; ,urhadj;

jhf;fj;jpw;F toq;Fk; ngau; ahJ?

îi& jhtu vz;nzapd; Kf;fpa $W Kf;fpspriul;nldf; fUjp ,t;Tw;gj;jpr; nrad;Kiwia

NaOH ,d; %yk; Cf;Ftpf;Fk;NghJ mjw;Fupa ,urhadr; rkd;ghl;il vOJf.

îii& ,r;nrad;Kiwapd;NghJ cz;lhFk; gf;f tpisnghUisf; Fwpg;gpLf.

îv& ,r;nrad;Kiwapy; Cf;fpahf NaOH ,w;Fg; gjpyhfj; jpz;k MgO Ig; gad;gLj;jyhk;. ,jd; Xu; mD$yj;ijf; Fwpg;gpLf.

^v& capu;j;jPriyg; gad;gLj;jy; ngw;Nwhypa vupnghUisg; gad;gLj;Jtijf; fhl;bYk;

#oYf;F NeakhdJ. ,f;$w;iwr; RUf;fkhf tpsf;Ff.

(c) jPe;ij cw;gj;jpr; nrad;Kiwapy; tpNrl ,urhadj; jhf;fq;fs; eilngWtjpy;iy.

î& jPe;ij cw;gj;jpr; nrad;Kiwapy; cs;s Kf;fpa ngsjpfr; nrad;Kiw ahJ?

îi& jPe;ij cw;gj;jpf;Fg; gad;gLj;jg;gLk; Kf;fpa %yg;nhgUl; $l;lq;fs; ehd;iff; Fwpg;gpLf.

îii& jPe;ij cw;gj;jpapy; <ukhf;Fk; fUtpiag; (Wetting agent) gad;gLj;Jtjw;fhd fhuzj;ijr;

RUf;fkhf tpsf;Ff.

îv& jPe;ij cw;gj;jpapy; epug;gpahf khj;jpuk; njhopw;gLk; gjhu;j;jk; xd;iwf; Fwpg;gpLf.

^v& rPnke;J Nkw;gug;gpy; G+rg;gLk; jPe;ijfis cw;gj;jp nra;tjw;Fg; gad;gLj;jg;gLk; Kf;fpa gy;gFjpaq;fs; njhlu;ghf vRj;ju; gpizg;G ,Uj;jy; cfe;jjd;W. ,jidr; RUf;fkhf

tpsf;Ff.

ntg;gkhdp

xLf;fp

%yg;nghUs;+ePu;

tbkk;

8. (a) fuhk;igg; gad;gLj;jpg; ngWkjpkpf;f Xu; capupurhadr; Nru;itiag; gpupj;njLf;fyhk;. mJ gw;gir cw;gj;jpf;Fg; gad;gLj;jg;gLfpd;wJ. ,r;Nru;itia vspa fha;r;rp tbg;gpd; %yk; gpupj;njLg;gjw;fhf khztu;fs; jahu;nra;j Xu; xOq;fikg;G ,q;F

fhl;lg;gl;Ls;sJ.

î& fuhk;gpypUe;J gpupj;njLf;fg;gLk; capupurhadr; Nru;itf;F toq;Fk; ngau; ahJ?

îi& xOq;fikg;gpy; xLf;fpapD}lhf ePiug; ghar; nra;tjd; Kf;fpaj;Jtj;ijf; Fwpg;gpLf.

îii& Nkw;Fwpj;j xOq;fikg;gpy; tbkk; (distillate) Nrfupf;fg;gLk; ghj;jpuj;ij tspkz;lyj;jpw;Fj;

jpwe;J itg;gjd; Njitia tpsf;Ff.

îv& tl;l mbf; FLitapYk; xLf;fpapYk; eilngWk; ngsjpf khw;wk; xt;nthd;W tPjk; Fwpg;gpLf.

^v& vspa tbg;gpy; Nrfupf;fg;gLk; tbg;Gj; jputj;jpy; mlq;Fk; capupurhadr; Nru;it xU Nrjdf; fiuryhf kWgbAk; gpupj;njLf;fg;gLk;. mjd;NghJ Nrjdf; fiug;ghdpd; KOf; fdtsTk; xNu jlitapy; gad;gLj;jg;glhky; rpwpa fdtsTg; gFjpfs; tPjk; vLf;fg;gl;L

%d;W re;ju;g;gq;fspy; gpupj;njLf;fg;gLk;. ,jw;Fupa fhuzj;ijf; Fwpg;gpLf.

^vi& NkNy ^v& ,y; Fwpg;gpl;lthW NtWgLj;jpa Nrjdg; gpupj;njLnghUspy; (extract) ePu; mlq;fpapUf;fyhk;. me;ePiu mfw;Wtjw;Fg; gad;gLj;jj;jf;f ,urhadr; Nru;it ahJ?


- 19 -

^vii& ,g;gpupj;njLg;Gf;fhff; nfhjpePuhtpapy; fha;r;rp tbj;jy; Kiwiag; gad;gLj;Jtjd; xU

gpujp$yj;ijf; Fwpg;gpLf.

^viii& gpupj;njLj;j Nru;itapd; J}a;ikiar; Nrhjpg;gjw;Fg; gad;gLj;jj;jf;f xU El;gKiwiaf;

Fwpg;gpLf.

îx& Nkw;Fwpj;j gpupj;njLg;G ghupa mstpy; eilngWk; xU njhopw;rhiyapy; iftplg;gLk; xU

jpz;kf; fopTg; nghUisf; Fwpg;gpLf.

^x& NkNy îx& ,w; Fwpg;gpl;l fopTg; nghUisg; gad;gLj;jp cw;gj;jp nra;aj;jf;f NtW ,U

cw;gj;jpg; nghUs;fisf; Fwpg;gpLf.

(b) î& tu;j;jfuPjpahd ryitr; rtu;f;fhu cw;gj;jpr; nrad;Kiwf;Fj; Njitahd Kf;fpa

%yg;nghUs;fisf; Fwpg;gpLf.

îi& rtu;f;fhukhf;fypypUe;J fpilf;Fk; <ur; rtu;f;fhuj;jpd; %yk; Kbthd rtu;f;fhu cw;gj;jpf;Fg;

gad;gLj;jg;gLk; $l;lw;nghUs;fisf; (additives) Fwpg;gpLf.

îii& rtu;f;fhu cw;gj;jpapd;NghJ rtu;f;fhukhf;fy; jhf;fj;jpw; gq;Fgw;Wk; ,U ,urhadg;

nghUs;fisf; Fwpg;gpLf.

îv& xU flw;fiug; gpuNjrj;jpy; rtu;f;fhu cw;gj;jpf; ifj;njhopiyj; njhlq;Ftjw;F cj;Njrpf;fg;gl;Ls;sJ. ,jw;fhff; fly; ePiug; gad;gLj;jy; cfe;jnjd xU khztd; $Wfpd;whd;. rtu;f;fhukhf;fy; jhf;fj;ijf; nfhz;L fly; ePu; cfe;jjhf ,y;yhikf;fhd

fhuzj;ijAk; ,urhad mbg;giliaAk; RUf;fkhff; fhl;Lf.

^v& Foe;ijfSf;fhd rtu;f;fhuj;ij tu;j;jf uPjpahf cw;gj;jp nra;tjw;Fg; gad;gLj;jg;gLk;

fhug; gjhu;j;jk; vd;d?

gFjp D - fl;Liu tif

9. cauKf;fj;jpd; fPo; nfhjpePuhtpia cw;gj;jp nra;Ak; xU nfhjpfyj;jpy; mKf;fj;ij xU Fwpj;j ngWkhdj;jpy; NgZtjw;Fj; jahu;nra;ag;gl;l Xu; xOq;fikg;G cUtpy; fhl;lg;gl;Ls;sJ. nek;G

XYZ ,d; Gs;sp X Roiyaplg;gl;L (gpizf;fg;gl;L) ,Uf;Fk; mNj Ntis Kid Z ,y; jpzpT

m cs;s xU Rik njhq;ftplg;gl;Ls;sJ. Gs;sp Y cld; ,izf;fg;gl;l xU jfl;L %bapdhy;

nfhjpfyj;jpd; Jthuk; %lg;gl;Ls;sJ. nfhjpfyj;jpy; Mtp mKf;fk; P I mz;kpj;jTld; jfl;L

%b cau;j;jg;gl;L Mtp mg;ghy; tpLtpf;fg;gLtjhy; mKf;fk; fl;Lg;gLj;jg;gLfpd;wJ. h kPw;wu; fPNo ,Uf;Fk; xU ePu;g; gk;gpapd; %yk; nfhjpfyj;jpw;F ePu; toq;fg;gLfpd;wJ (Nfhy; XZ ,d; jpzpitg; Gwf;fzpf;f).

ePu;

nfhjpfyk;

ePu; toq;Fk; Foha;

jfL

nfhjpfyj;jpd; cl;gFjp

Rik (m)

jpUFgpb

kpd; ntg;gkhf;fp

P

Y

20 cm 80 cmX Z


- 20 -

(a) xU epkplj;jpy; ePu;g; gk;gpapypUe;J 0.6 m3 ePu;f; fdtsT 6 m ,w;F cau;j;jg;gl;Lf; nfhjpfyj;jpDs;Ns

Gwf;fzpf;fj;jf;f fjpapy; Nru;f;fg;gLfpd;wJ. ePupd; mlu;j;jp 1000 kg m-3 MFk;. g =10 m s-2 vdf;

nfhs;f.

î& xU nrf;fdpNy nfhjpfyj;jpw;F tUk; ePupd; nkhj;jr; rf;jpiaf; fzpf;f.

îi& gk;gpapd; jpwd; 60% vdpd;> mjd; tYitf; fzpf;f.

(b) 25 °C ,y; ,Uf;Fk; ePu; cs;s nfhjpfyj;jpw;F ntg;gj;ij toq;Fk;NghJ jfl;L %b jpwf;Fk;

fzj;jpy; 100°C ,y; nfhjpf;Fk; ePupy; 25% MdJ vQ;rpapUe;jJ. ntspNa tpLtpf;fg;gl;l Mtp

120 °C ,y; ,Ue;jnjdpd;> me;j Mtp ngw;w nkhj;j ntg;gj;ijf; fzpf;f.

ePupd; jd;ntg;gf; nfhs;ssT = 4200 J kg-1 K-1 nfhjpePuhtpapd; jd;ntg;gf; nfhs;ssT = 2 × 103 J kg-1 K-1

ePupd; Mtpahfypd; jd; kiw ntg;gk; = 2 × 106 J kg-1

(c) î& nfhjpfyj;jpd; Jthuj;jpd; gug;gsT A MfTk; jfL kPJ gpuNahfpf;fg;gLk; Nkyjpf mKf;fk;

P MfTk; ,Ug;gpd;> jfl;L %b cau;j;jg;gLk; fzj;jpy; mjd; kPJ gpuNahfpf;fg;gLk; tpir

(F) ,w;Fupa xU Nfhitiaj; jug;gl;Ls;s FwpaPLfspd; rhu;gpw; ngWf. (tspkz;ly mKf;fk;

105 Pa MFk;).

îi& cs; mKf;fk; 2 × 105 Pa Mf ,Uf;Fk;NghJ ,q;F %b cau;j;jg;gLk;.

(1) %bapd; gug;gsT 5 cm2 vdpd;> mJ cau;j;jg;gLk; fzj;jpy; mjd; kPJ jhf;Fk;

tpiriaf; fzpf;f.

(2) %b cau;j;jg;gLk; fzj;jpy; nek;G XYZ ,y; njhq;ftplg;gl;l Rikapd; ngWkhdj;ijf; fzpf;f.

(3) Nkw;Fwpj;j mKf;fj;ijf; fhl;bYk; Fiwe;j mKf;fj;jpy; %b jpwf;f Ntz;Lnkdpd;>

mjw;fhfr; nra;a Ntz;ba ,U Kf;fpa khw;wq;fisf; Fwpg;gpLf.

N S

X

YCC D

fk;gpr; RUs;

10. (a) Xu; Mlw; gpwg;ghf;fpapd; mikg;G cUtpw; fhl;lg;gl;Ls;sJ. ,q;F RUs; fhw;wpd; %yk; njhopw;gLj;jg;gLk; mNj Ntis mJ xU RoypAld;

njhLf;fg;gl;Ls;sJ.

i& Roypiar; Royr; nra;tjw;Ff; fhw;Wf;Fg; gjpyhfg; gad;gLj;jj;jf;f NtW ,U Kiwfisf;

Fwpg;gpLf.

îi& RUs; RoYk;NghJ RUspd; Kbtplq;fSf;Ff; FWf;Nf J}z;lg;gLk; kpd;dpaf;f tpirapd; gUkd;

rhu;e;jpUf;Fk; %d;W fhuzpfis vOJf.

îii& RUspd; Kbtplq;fSf;Ff; FWf;Nf xU Fkpio ,izf;Fk;NghJ Rw;wpy; ghAk; Xl;lj;jpw;Fk; xU gw;wupapypUe;J Rw;W ngWk; Xl;lj;jpw;FkpilNa

cs;s ,U NtWghLfis vOJf.

îv& RUSf;Ff; FWf;Nf J}z;ba kpd;dpaf;f tpiriaAk; Rw;wpy; ghAk; Xl;lj;ijAk;

msg;gjw;fhf X, Y vdg; ngauplg;gl;Ls;s msf;Fk;

cgfuzq;fis Fwpg;gpLf.

^v& ,t;nthOq;fikg;gpd; %yk; 6 W, 0.5 A vd tPjkhf;fg;gl;l xU Fkpiof; Fwpj;jthW xspur; nra;a KbAnkdpd;> J}z;ba kpd;dpaf;f tpirapd; ngWkhdj;ijf; fhz;f. RUspd; mfj; jiliag;

Gwf;fzpf;f.


- 21 -

(b) xU epiykhw;wpapd; njhopiyr; Nrhjpg;gjw;fhfr; nra;ag;gl;l xU gupNrhjidapy; NkNy â& ,w; fhl;lg;gl;Ls;s MlNyhl;l kpd; gpwg;ghf;fpia cUtpw; fhl;lg;gl;Ls;sthW xU epiykhw;wpAld; ,izj;J> gpd;tUk; ml;ltizapy; fhl;lg;gl;Ls;sthW NgWfs; ngwg;gl;Ls;sd.

12 V

S

S IP / A VP / V IS / A VS / V

jpwe;j 0.2 12 0 3%ba 1.5 12 4 3

S %lg;gl;bUf;Fk; re;ju;g;gj;jpw;Fg; gpd;tUk; fzpg;Gfisr; nra;f.

î& Jizr; RUspd; KWf;F vz;zpf;ifKjd;ikr; RUspd; KWf;F vz;zpf;if

vt;tsT?

îi& epiykhw;wpapd; nga;g;G tYitf; fhz;f.

îii& epiykhw;wpapd; gag;G tYitf; fhz;f.

îv& Rikj; jilapd; ngWkhdj;ijf; fhz;f.

^v& gag;G tY ngag;G tYtpYk; Fiwthf ,Ug;gjw;F ,U fhuzq;fisf; Fwpg;gpLf.

^vi& NkNy (b) (v) ,w; Fwpg;gpl;l ,U fhuzq;fisAk; ,optsthf;fj;jf;f Kiwfisf; Fwpg;gpLf.

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