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,t;tpdhj;jhs; 15 gf;fq;fspy; 50 tpdhf;fisf;;; nfhz;Ls;sJ. vy;yh tpdhf;fSf;Fk; tpil vOJf. tpilj;jhspy; jug;gl;Ls;s ,lj;jpy; ckJ Rl;nlz;iz/ ngaiu vOJf.

Rl;nlz;/ ngau; : …………………………………

1) xypr; nrwptpd; myF 1. Hz 2. dB 3. Wm-2 4. Jm-2 5. W

2) gpd;tUk; NrhbfSs; ve;j xd;W fhtpf; fzpak; xd;iwAk; vz;zpf; fzpak;

xd;iwAk; KiwNa nfhz;lJ. 1. tpir> Mu;KLfy; 2. fjp> tY 3. Ntiy> mOj;jrf;jp 4. ce;jk;> Ntfk; 5. tpir> Ntiy

3) epWj;jw; fbfhunkhd;wpd; ,opT vz;zpf;if 0.2s MFk;. ,jidg; gad;gLj;jp vspa Crnyhd;wpd; 20 miyTfSf;Fupa Neuk; 25s vd msf;fg;gLfpwJ. Neuj;ij msj;jypy; Vw;gl;l rjtPjtO> 1) 0.1% 2) 0.8% 3) 1.8% 4) 8% 5) 16%

4) fop xyp gw;wpa gpd;tUk; $w;Wf;fspy; vJ cz;ikahdjy;y?

1) mJ xypapd; Ntfj;Jld; efUk;.

2) mJ rhjhuz xypapd; kPbwid tplf; $ba kPbwid cilaJ.

3) kdpjf; fhjpdhy; Nfl;f Kbahjit.

4) mJ rhjhuz xypia tplf; Fiwe;j miy ePsKbait.

5) mJ nlhg;gpsu; tpisit cz;lhf;fhJ.

juk; - 13 (2020Batch) ngsjpftpay; - I 2.00 kzpj;jpahyk;

fy;tpg; nghJj; juhjug; gj;jpu cau;jug; guPl;ir

General Certificate of Education (Adv.Level) Examination

2 | P a g e

5)Neu;Nfhl;by; gazpf;Fk; P, Q vDk; ,U fhu;fSf;fhd ,lg;ngau;r;rp – Neu tiuig cU fhl;Lfpd;wJ.

Neuk; T apy; ,U fhu;fSf;fhd ,af;fk; gw;wpa gpd;tUk; $w;Wf;fisf; fUJf.

(A) Q ,d; fjpahdJ P apd; fjpia tpl rpwpajhFk;.

(B) Q ,d; ,lg;ngau;r;rpahdJ P apd; ,lg;ngau;r;rpia tpl ngupajhFk;.

(C) Papd; Mu;KLfy; Q ,dJ Mu;KLfYf;F rkd;.

Nkw;Fwpj;j $w;Wf;fspy; vJ / vit rupahdJ / it?

1. A kl;Lk; 2. A, B kl;Lk; 3. A, C kl;Lk;

4. B, C kl;Lk; 5. A, B, C Mfpa vy;yhk;.

6) vspa EZf;Ff;fhl;bahfg; ghtpf;fg;gLk; tpy;iyf;F kpf mz;ikapy; fz; ,Uf;Fk; NghJ cUg;ngUf;ftY cau;thf ,Ug;gjw;F 1) nghUs; jiyikf;Ftpaj;jpw;F rw;W ntspNa ,Uj;jy; Ntz;Lk; 2) nghUs; jiyikf;Ftpaj;jpw;F rw;W cs;Ns ,Uj;jy; Ntz;Lk; 3) nghUs; Ftpaj;jpy; ,Uj;jy; Ntz;Lk;. 4) tpk;gj;Juk; Ftpaj;Juj;jpYk; rw;W Fiwthf ,Uj;jy; Ntz;Lk;. 5) tpk;gk; fz;zpd; mz;ikg;Gs;spapy; ,Uj;jy; Ntz;Lk;.

7) tspapy; ,Uf;Fk; Nfhs tbthd ePu;j;Jsp xd;wpd; gug;gpy; gLk; xspf;fw;iw xd;wpd; ghijapd; xU gFjpia cU fhl;Lfpd;wJ. A,B,C Mfpa ,lq;fspy; xspapd; Njhw;wg;ghL gw;wpa $w;Wf;fspy; rupahdJ.

A apy; B apy; C apy; (1) gFjp KwpT KO cl;njwpg;G gFjp KwpT (2) KwpT gFjpj; njwpg;G KwpT (3) gFjp KwpT gFjpj; njwpg;G gFjp KwpT (4) KwpT KO cl;njwpg;G KwpT (5) Nfhzy; gFjpj; njwpg;G Nfhzy;

8) 25cm Ftpa ePsKs;s ,U rk xUf;Ftpy;iynahd;W fhl;lg;gl;lthW ,U rkgFjpfshf ntl;lg;gl;lthW ,U rkgFjpfshf ntl;lg;gbd; xt;nthd;wpYKs;s Gjpa tY 1) 2D (2) D (3) 4D (4) 5D (5) 3D

3 | P a g e

9) 9kg jpzpTila xU Fz;L A,B ,U Jz;Lfshf ntbf;fpd;wJ. jpzpTfs; KiwNa

3kg , 6kg MFk;. AapdJ Ntfk; 16ms-1 Mapd; B apdJ ,af;fg;ghl;L rf;jp

1) 96J 2) 192J 3) 384J 4) 768J 5) 24J

10) cUtpy; fhl;lg;gl;l rl;lk; xU rPu;f;fk;gpapypUe;J nra;ag;gl;Ls;sJ. rl;lj;jpd; <u;g;G ikak; kpfg; ngUk;ghYk; ,Ug;gjhf Cfpf;fj;jf;f ,lk;

(1) A (2) B (3) C (4) D (5) E

11) khwhf;fd msTila FLit xd;wpy; cs;s ,yl;rpa thA xd;wpd; %yf;$Wfspd; ruhrup ,af;fg;ghl;L rf;jp 4 klq;fhy; mjpfupf;fg;gLk; NghJ mjpy; cs;s thAtpd; mKf;fk;. (1) khwhjpUf;Fk; (2) 2 klq;fhy; mjpfupf;Fk; (3) 4 klq;fhy; mjpfupf;Fk; (4) 8 klq;fhy; mjpfupf;Fk; (5) 16 klq;fhy; mjpfupf;Fk;

12) xU miwapy; cs;s tspapd; rhuPug;gjd; njhlu;ghd gpd;tUk; $w;Wf;fisf; fUJf.

(A) jdp<ug;gjd; cau;thf ,Uf;Fk;NghJ rhuPug;gjDk; cau;thf ,Uf;Fk;.

(B) tspg;gjg;gLj;jpa miwapy; rhuPug;gjd; vg;NghJk; cau;thf ,Uf;Fk;.

(C) miw ntg;gepiy gdpgLepiyf;F rkdhFk; NghJ rhuPug;gjd; cau;thf ,Uf;Fk;. (1) A kl;Lk; rup (2) B kl;Lk; rup (3) C kl;Lk; rup

(4) B,C ,uz;Lk; rup (5) A,B,C vy;yhk; rup

13) fhl;lg;gl;Ls;s tisapahdJ Xu; Neu; Nfhl;by; ,aq;Fk; nghUs; xd;wpd; tpir - ,lg;ngau;r;rp tisapia fhl;Lfpd;wJ. ,y; tpirapdhy; nra;ag;gl;l Ntiy>

(1) 0J (2) 10J (3) 20J 1. (4) 30J (5) 40J

2.

3.

4. 5.

14) n`ypnfhg;lupd; Nky;Nehf;fpa gwg;gpid tpsf;f gad;gLtJ

(1) epA+l;;ldpd; Kjyhk; tpjp (2) epA+l;;ldpd; ,uz;lhk; tpjp (3) epA+l;;ldpd; %d;whk; tpjp (4) epA+l;;ldpd; Kjyhk;> ,uz;lhk; tpjpfs; (5) epA+l;;ldpd; ,uz;lhk; %d;whk; tpjpfs

4 | P a g e

15) fz;zhbg; ghj;jpunkhd;W 3

5 gq;fpw;F ,urj;jpdhy; epug;gg;gl;Ls;sJ. fz;zhb>

,urj;jpdJ fdtsT tpupTf; Fzfq;fs; KiwNa 9x10-6 -1, 18x10-5 -1 MFk;. ,urj;jpd; Njhw;w fdtsT tpupTf; Fzfk; rkd;.

(1) 17.1x10-5 -1 (2) 9.9x10-5 -1 (3) 19.5x10-5 -1

(4) 18x10-5-1 (5) 16.5x10-5-1

16) Fwpj;j msT ,yl;rpathA khwh ntg;gepiyapy; fdtsTld; mjd; mJf;fj;jpd; jiyfPo; ngWkhdk; khWfpd;w tpjj;ij tiuG fhl;Lfpd;wJ.

thAtpd; jpzpTk; mjd; ntg;g ,af;ftpay; ntg;gepiyAk; ,ul;bf;fg;gLk; NghJ tiugpy; gpd;tUk; vf;NfhL ngwg;gLk;?

(1) A (2) B (3) C

(4) D (5) E

17) jl;Lf;fspd; gug;gsTfs; A1,A2 I cila (A1<A2) itAk; d ,ilj;Juj;jpYk; cs;s

nfhs;sstp xd;wpd; nfhs;ssT

(1) 𝐴1𝜀0

𝑑 (2)

𝐴2𝜀0

𝑑 (3)

𝐴1𝐴2𝜀0

𝑑

(4) 𝜀

0√𝐴1𝐴2

𝑑 (5)

(𝐴1+𝐴2)𝜀0

2𝑑

5 | P a g e

18)

glj;jpy; fhl;bAs;s Rw;wpy; C1,C2 ,y; Nrkpf;fg;gLk; Vw;wq;fs; KiwNa

(1) 8𝜇𝐶, 8𝜇𝐶

(2) 16𝜇𝐶, 16𝜇𝐶

(3) 8𝜇𝐶, 16𝜇𝐶

(4) 16𝜇𝐶, 8𝜇𝐶

(5) 8𝜇𝐶, 12𝜇𝐶

19) xspf;fjpnuhd;W glj;jpy; fhl;bathW xUNfhzk;. 600 MfTs;s nrq;Nfhz fz;zhb mupankhd;wpd; xU Kfj;jpw;Fr; nrt;tdhfg; gLfpd;wJ. ntspg;gLfjpuhdJ.

20) 3 Ω jilAila MW jilfs; glj;jpy; cs;sthW tiyNtiy xd;iw mikf;fg; gad;gLj;jg;gl;Ls;sd.A,Bf;fpilapy; rkhdj;jil

(1) 7

12Ω (2)

9

5Ω (3)

12

7Ω

(4) 7 Ω (5) 5

9Ω

21) cUtpy; fhl;lg;gl;bUf;Fk; Rw;wpy; cs;s gw;wupf;F mfj;jil ,y;iy. fyj;jpd; kpd;dpaf;ftpirf;F ,Uf;Fk; ngWkhdk;>

(1) 12V

(2) 16V

(3) 18V

(4) 15V

(5) 6V

6 | P a g e

22)cUtpy; fhl;lg;gl;Ls;s Rw;wpYs;s tyk;

Gwf;fzpf;fj;jf;f cl;jilAilaJ. A Gtpj;njhLg;G

nra;ag;gl;Ls;sJ. AB topNa mOj;j tPo;r;rpia fPo; cs;s tiuG fhl;Lfpd;wJ. fyj;jpd; kpd;dpaf;f

tpir R, Rw;wpDlhd kpd;Ndhl;lk; I gw;wpa $w;Wf;fspy; rupahdJ.

E I

(1) 12V 1A

(2) 8V 2A

(3) 8V 4A

(4) 12V 2A

(5) 4V 8A

23) Gtpapd; Miu R Mf ,Uf;Fk; mNj Ntis ,il mlu;j;jp ρ MFk;. Gtp kPJ cs;s

xU Gs;spapd; GtpaPu;g;gpdhyhd Mu;KLfy; g MFk;. Miu R⁄2 MfTk; ,il mlu;j;jp

3 ρ MfTk; cs;s xU Nfhs; kPJ cs;s xUGs;spapy; GtpaPu;g;gpdhyhd Mu;KLfy;

1. 2. 3. g 4. 5.

24) Kidj; jpUj;jk; e MfTs;s xU gupTf; Foha; ePupy; Kw;whf mkpo;j;jg;gl;L Foha; gbg;gbahf cau;j;jg;gLk; mNj Ntis mjd; jpwe;j Kidf;Ff; fpl;l Xu; ,irf; fitia mjpur; nra;Ak; NghJ ,U Kjy; gupTr; re;ju;g;gq;fspYk; tsp

epuy;fSf;fpilNa ePsj;jpy; cs;s tpj;jpahrk; L MFk;. tspapDlhf cs;s xypapd;

fjp V vdpd; ,irf; fitapd; kPbwd;

1) 2) 3) 4) 5)

25) KwpTr; Rl;b 4⁄√3 MfTs;s Xu; Clfj;jpDlhfr; nry;Yk; Xu; xspf; fjpu; KwpTr; Rl;b 4⁄3 MfTs;s Xu; Clfj;jpy; 30o Nfhzj;jpw; gLfpd;wJ. (A) fjpupd; tpyfy; 30o MFk;.

(B) fjpu; KO mfj; njwpg;Gf;F cl;gLfpd;wJ. (C) Kwpfjpu; gFjpj; njwpfjpUf;Fr; nrq;Fj;jhdJ. ,tw;wpy; cz;ikahdJ/ cz;ikahdit?

1. A khj;jpuk; 2. B khj;jpuk; 3. A, B khj;jpuk; 4. A, C khj;jpuk; 5. B, C khj;jpuk;

g

3

g

2

2g

3

3g

2

V

2L + 2e

V

2L + e

V

L + e

V

L

V

2L

7 | P a g e

26) ntg;gf; nfhs;ssT Gwf;fzpf;fj;jf;f xU ghj;jpuj;jpy; xU jpz;kk; khwh tPjj;jpy; ntg;gkhf;fg;gLk; NghJNeuj;Jld; ntg;gepiyapd; khwy; cUtpy; fhzg;gLfpd;wJ. jpz;kj;jpd; jd;ntg;gf; nfhs;ssT 2100 J kg-1 K-1 MFk;. ,j;jputpak; jput epiyapy; ,Uf;Fk;NghJ jd;ntg;gf; nfhs;ssT

1. 600 J kg-1 K-1 2. 700 J kg-1 K-1 3. 800 J kg-1 K-1 4. 900 J kg-1 K-1 4. 1000 J kg-1 K-1

27) NgZaP Nfhl;ghl;ilg; gad;gLj;jp tpsf;f Kbahj Njhw;wg;ghL ahJ? 1. xU Gifapujk; tpiuthfr; nry;Yk;NghJ Gifapujg; ghijf;F mz;ikapy;

,Ug;gtu; mjd; jpirapy; ,Of;fg;gLjy;. 2. ePu; xU ngupa FohapypUe;J rpwpa Foha;f;Fr; nry;Yk;NghJ fjp mjpfupj;jy;. 3. fLk; fhw;W cs;s xU re;ju;g;gj;jpy; $iuapy; Ntag;gl;l epiw Fiwe;j jfLfs;

fod;W Nghjy; 4. Ruq;fg; ghijfspy; ePu; nry;Yk;NghJ Rw;wp Cw;Wfs; fhzg;gLjy;. 5. gq;fPl;Lg; gk;gpapy; cl;gha;r;rg;gLk;NghJ jputk; guTjy;

28) xU Fwpj;j kpd; Gyj;jpd; kpd;Gyr; nrwpT (E) ,w;Fk; Juk; (r) ,w;FkpilNa cs;s khwy; mUfpy; cs;s cUtpy; fhzg;gLfpd;wJ. ,t;tiuGf;Nfw;g mOj;jk; (V) ,w;Fk; Juk; (r) ,w;FkpilNa cs;s khwy;

29) cUtpy; fhzg;gLk; mOj;jkhdpr; Rw;wpd; czu;jpwidf; $l;Ltjw;F>

1. ES If; $l;l Ntz;Lk;. 2. R If; $l;l Ntz;Lk;. 3. ES If; $l;b R If; $l;l Ntz;Lk;. 4. E If; $l;b R If; Fiwf;f Ntz;Lk;. 5. E iaf; Fiwj;J R If; $l;l Ntz;Lk;.

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30) njhlu;G <ug;gjd; jdp <ug;gjd; njhlu;ghd gpd;tUk; $w;Wf;fisf; fUJf.

(A) ngupa gdpf;fl;bj; Jz;nlhd;W tspapy; itf;fg;gLk;NghJ mjidr; #o mz;ikapYs;s gpuNjrj;jpy; njhlu;G <ug;gjd; 100% ,id mile;J khwhjpUg;gijAk; mjidj; njhlu;e;J jdp <ug;gjd; FiwtiltijAk; mtjhdpf;fyhk;.

(B) epuk;ghj ePuhtpiaf; nfhz;l Xu; %ba miwapDs; ntg;gepiyia Fiwf;Fk; NghJ njhlu;G <ug;gjd; 100% ,id mile;J khwhjpUg;gijAk; mNj Ntis jdp <ug;gjd; njhlu;e;J khwhjpUg;gijAk; mtjhdpf;fyhk;.

(C) Xu; %ba ntWikahd miwapDs; cs;s tspg;gjg;gLj;J fUtp (AC) rpwpJ Neuk; ,af;ftplg;gl;L gpd; tspapd; ntg;gepiyia Kd;ida ntg;gepiyf;F cautplg;gLk; NghJ njhlu;G <ug;gjd; khwhjpUf;Fk;. jdp <ug;gjd; FiwtilAk;.

,f;$w;Wf;fspy;> 1. A kl;Lk; cz;ikahdit. 2. A, B kl;Lk; cz;ikahdit. 3. A, C kl;Lk; cz;ikahdit. 4. B, C kl;Lk; cz;ikahdit. 5. A, B, C vy;yhk; cz;ikahdit.

31)rPuhd FWf;F ntl;Lg;gug;GilaJk; ,U gFjpfs; fhtyplg;gl;Ls;sJ khd

cNyhff; Nfhypy; A ,ypUe;J D tiu

Nfhy; topNa Juk; (d) cld; ntg;gepiy (θ) ,d; khwiyf; fhl;Lk; rupahd tiuG

32)Miu R, 2R cila rPuhd tl;lf;fk;gpfspd; ikak; O

,y; tpisAs; fhe;jg;gha mlu;j;jp

1. 2. 3.

μo I

4 R

3μo I

8 R

2μo I

3 R

3μo I

4 R

4μo I

3 R

9 | P a g e

33)A, B vDk; tpj;jpahrkhd ,U #lhd jputq;fs; ru;trkdhd ,U fNyhupkhdpfspy; rkfdtsT vLf;fg;gl;L xNu epge;jidapd;

fPo; Fspu tplg;gl;Lfpd;wd. Neuk; t = 0 ,y;

jputq;fspd; ntg;gepiy 60 oC ck; Neuk; t

= t0 ,y; jputq;fspd; ntg;gepiy 40 oC ck;

MFk;. miwntg;gepiy 30 oC MFk;. gpd;tUk; $w;Wf;fisf; fUJf.

(A) Neuk; t = t0 tiu A, B vd;git xNu tPjj;jpy; FspUk;. (B) A, B vd;git #oYf;F ,of;fg;gLk; ntg;gtPjk; rkdhFk;. (C) A, B vd;gitfspd; ntg;gf; nfhs;ssTfs; rkdhFk;. ,f;$w;Wf;fspy;> 1. A kl;Lk; cz;ikahdJ. 2. A, B kl;Lk; cz;ikahdit. 3. A, C kl;Lk; cz;ikahdit. 4. B, C kl;Lk; cz;ikahdit. 5. A, B, C vy;yhk; cz;ikahdit.

34)nghJikak; O1 itf; nfhz;l xU ikaf;Nfhs

XLfSf;F + 2 μC, + 6 μC vd;Dk; Vw;wq;fs;

nfhLf;fg;gl;Ls;sd. O1 ,y; ,Ue;J 6 cm

Juj;jpy; cs;s xU Gs;sp O2 ,y; +2 μC vd;Dk; Vw;wk; itf;fg;gl;Ls;sJ. gw;wpa gpd;tUk;

$w;Wf;fisf; fUJf. ,q;F r < 1 cm MFk;.

(A) Gs;sp O1 ,y; ,Ue;J 4 cm Juj;jpy; cs;s Gs;spapy; kpd;Gyr;nrwpT G+r;rpakhFk; Gs;sp cUthFk;.

(B) Gs;sp O2 ,y; ,Ue;J 4 cm Juj;jpy; cs;s Gs;spapy; kpd;Gyr; nrwpT G+r;rpakhFk; Gs;sp cUthFk;.

(C) cl;Nfhsj;jpYs;s + 2μC Vw;wkhdJ O2 jpir topNa Gwf;Nfhsj;jpw;F nfhz;L nry;Yk;NghJ Gs;sp O1 ,y; ,Ue;J 4 cm Juj;jpy; cs;s Gs;spapy; kpd;Gyr;nrwpT gbg;gbahf FiwAk;.

Nkw;$wpa $w;Wf;fspy;> 1. A khj;jpuk; cz;ikahdJ 2. B khj;jpuk; cz;ikahdJ. 3. C khj;jpuk; cz;ikahdJ 4. A, B khj;jpuk; cz;ikahdit. 5. A, C khj;jpuk; cz;ikahdit.

35) v vd;Dk; khwhf;fjpAld; fpilahd jsk; xd;wpy; cUSk; m jpzpTila jpz;kf; Nfhsk; xd;wpd; nkhj;j ,af;fg;ghl;Lr; rf;jpf;F rkdhf ,Ug;gJ (jpz;kf; Nfhsj;jpd;

rlj;Jtj; jpUg;gk; 2∕5 mr2 ,q;F r Nfhsj;jpd; MiuahFk;.)

1. ½ mv2 2. 1∕5 mv2 3.

2∕5 mv2 4. 7∕5 mv2 5.

7∕10 mv2

10 | P a g e

36)ePiu nfhz;l fz;zhb Kfit xd;W A vd;Dk; juhrpy;

itf;fg;gl;Ls;sJ 40 cm3 fdtsTila rPuhd cUis xd;W 100g

jpzpTila xU tpw;wuhrpy; njhq;f tplg;gl;Ls;sJ. Nkirj;juhR A

,d; thrpg;G 230 g ck; tpw;juhR B ,d; thrpg;G 195 g ck; MFk;.

cUisahdJ ePupDs; Kw;whf mkpo;j;jg;gl;Ls;s NghJ jhuhRfs; A

apdJk; B apdJk; thrpg;Gfs; KiwNa (ePupd; mlu;j;jp 1000 kg m-3)

1. 190 g, 235 g 2. 190 g, 155 g 3. 270 g, 155 g 4. 270 g, 235 g 5. 235 g , 190 g

37) rpwpjstpy; NtWgl;l mjpu;ntz;fis cila ,U xyp miyfspd; tpisAs; ,lg;ngau;r;rp tisapia cU fhl;LfpwJ. ,jd; mbg;G mjpu;ntz;

1. 2 Hz 2. 4 Hz 3. 5 Hz 4. 10 Hz 5. 2.5 Hz

38)

A, B vd;Dk; ,U Nfhsq;fs; xU ,Nyrhd Nfhy; xd;wpdhy; ,U Kidfspy; fl;bj; njhq;ftplg;gl;L rkepiyapy; ,Ug;gij cU I fhl;LfpwJ. ,t;tpU Nfhsq;fSk; cU II ,y; fhl;lg;gl;lthW ePupDs;Sk; 0.9 mlu;j;jpAila kz;nzz;izapYk; mkpo;e;Js;s NghJk; rkepiy Fok;gtpy;iy vdpd;> B Mf;fg;gl;l ghjhu;j;jj;jpd; mlu;j;jp A Mf;fg;gl;l ghjhu;j;jj;jpd; mlu;j;jp 1. 0.9 2. 1 3. 10/9 4. ½ 5. 1/10

11 | P a g e

39)rf;fur; nrad;Kiwf;Fl;gLk; ntg;gtpaf;ftpaw; njhFjp

xd;iw fhl;lg;gl;l PV tupg;glk; tif Fwpf;fpwJ.

,r;rf;fuj;jpd; %ba jlq;fs; (a)> (b) vd;gtw;wpy; ΔQ,

ΔW vd;gd njhlu;ghd $w;Wf;fspy; cz;ikahdJ>

ΔQ ΔW

jlk; (a) jlk; (b) jlk; (a) jlk; (b)

1. 0 0 + -

2. + - 0 0

3. + - + -

4. - + + -

5. - + - +

40)nka;g; nghUs; xd;wpdJ nka; tpk;gk; xd;iw tpy;itnahd;W cUthf;FfpwJ. tpy;iyapypUe;J

nghUSf;fhd Juk; u,

tpy;iyapy; ,Ue;J tpk;gj;jpw;fhd

Juk; v MFk;. u cld; v ,d; khwiy fPOs;s tiuG fhl;LfpwJ. tiugpypUe;J

1. 10 cm Ftpaj; JuKila xUq;Fk; tpy;iy.

2. 20 cm Ftpaj; JuKila xUq;Fk; tpy;iy.

3. 10 cm Ftpaj;JuKila tpuptpy;iy.

4. 20 cm Ftpaj;JuKila tpuptpy;iy.

5. 20 cm Ftpaj;JuKila FtpAk; gpiwAU

41)Muk;gj;jpy; Nkirapd; kPJ xt;nthd;Wk; jpzpT m, jbg;G h cila ehd;F ru;trkkhd rPuhd Fw;wpfs; gutp itf;fg;gl;Ls;sJ. Fw;wpfis xd;wd; kPJ xd;W mLf;Fk; NghJ nra;ag;gl;l Ntiy ahJ?

1. 2 mgh 2. 3 mgh 3. 4 mgh 4. 6 mgh 5. 7.5 mgh

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42)%d;W NtWgl;l epiyfspy; NtWgl;l kPbwd;fshd f1, f2, f3 I ntsptpLk; xypKjy;

S ,id cU (A), (B), (C) vd;gd fhl;Lfpd;wd. O vd;gtu; mjthdpahthu;. xt;nthU epiyapYk; xypKjy;> mtjhdpapdJ Ntfk;> ,aq;Fk; jpir vd;gtw;iw cU fhl;Lfpd;wJ. %d;W epiyikfspy; mtjhdp xNuasthd miyePsj;ijg; ngWfpd;wJ vdpy;> xypKjyhy; gpwg;gpf;fg;gLk; kPbwd;fSf;fpilNaahd njhlu;G

1. f3 > f1 > f2 2. f3 > f1 = f2 3. f3 < f2 < f1 4. f1 = f3 < f2 5. f1 = f3 > f2

43)fhl;lg;gl;Ls;s Rw;wpy; V2 MdJ fynkhd;wpdhy; toq;fg;gLk;

khWk; Nthy;w;wstgFk;. Gtp rhu;ghf Gs;sp A apy; mOj;jk;

VA MdJ V2 cld; khWtij rpwe;j Kiwapy; tiff;Fwpg;gJ> (,uz;L tY toq;fpfspdJk; mfj; jilfisg; Gwf;fzpf;f)

44)flj;jpnahd;wpd; ntg;gepiy jil mjpfupg;Gf; Fzfk; 1.25 x 10-3 K-1 MFk;.

flj;jpapd; jil 300K ,y; 1Ω MFk;. flj;jpapd; jil 2Ω Mff; fhzg;gLk; ntg;gepiy

1. 1154 K 2. 1100 K 3. 1400 K 4. 1127 K 5. 1227 K

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45)fpilg;ghijapy; ,aq;Fk; nghUs; xd;wpy; jhf;Fk; tpir

F Neuk; t Ald; khWtijf; fhl;Lk; tiuG tupg;glj;jpy;

fhl;lg;gl;Ls;sJ. ,jd; Ntfk; V Neuk; t Ald; khWtijf; fhl;Lk; tiuG gpd;tUtdtw;wpy; vJ?

46)fhe;jg;Gyk; xd;wpDs; RoYk; RUspy; Jz;lg;gl;l

kpd;dpaf;ftpir (E) MdJ Neuk; (t) cld; khWgLtij mUfpYs;s cU fhl;Lfpd;wJ. jw;NghJ RUspd; Row;rpf;fjp ,Uklq;fhf;fg;gLk; NghJ mNj mr;rpy; Jz;lg;gl;l kpd;dpaf;ftpir(E) MdJ Neuk;(t) Md khwiyf; fhl;Lk; tiuG>

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47)rPuhd fhe;jg;Gyk; B apy; itf;fg;gl;l flj;jp kpd;Ndhl;lk;

I iaf; fhTfpd;wJ. cau;jil Nthy;w;khdp thrpg;G N`hypd; mOj;j NtWghL VH I thrpf;fpd;wJ VH jq;fpapUf;Fk; fhuzpfs; gw;wpa $w;Wf;fisf; fUJf.

(A) fhe;jg;gha mlu;j;jp B mjpfupf;f mjpfupf;Fk;

(B) kpd;Ndhl;lk; I mjpfupf;f mjpfupf;Fk;

(C) flj;jpapd; jbg;G t mjpfupf;f mjpfupf;Fk;

(1) A kl;Lk; rup (2) B kl;Lk; rup (3) A>B ,uz;Lk; rup

(4) B, C ,uz;Lk; rup (5) A,B,C vy;yhk; rup

48)fhl;ba mOj;jkhdpr; Rw;wpy; PO ,d; jilkPjhd

Fwpj;j epiyf;F Msp C,A apYk; B apYk; cs;s

NghJ njhLrhtp P mOj;jkhdp fk;gpkPJ

KiwNa X ,Yk; Y ,Yk; njhLk; NghJ

fy;tNdhkhdp G G+r;rpaj; jpUk;giyf; fhl;baJ.

Mapd; kpd;dpaf;f tpirfspd; tPjk; E1/E2 ahJ.

(X,Y Gs;spfs; Fwpj;j fk;gpfspd; eLg;Gs;spfs; MFk;.)

(1) 1:2 (2) 2:3 (3) 3:5 (4) 5:6 (5) 1:1

49)fhl;lg;gl;Ls;s jilfspyhd tiyNtiyapy; A,B vd;Dk; Gs;spfSf;F ,ilapyhd rktYj;jil>

1) 2 Ω

2) 3 Ω

3) 4 Ω

4) 6 Ω

5) 8 Ω

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50)cUtpy; cs;sthW jsf;Fr; nrq;Fj;jhf rPuhd fhe;jg;Gyk; cs;s gpuNjrk; xd;W ePz;L ,Uf;fpd;wJ. xU jlkhdJ tyk; Nehf;fp khwh Ntfj;Jld; mirf;fg;gLfpd;wJ. t = 0 ,y; ,Ue;J jlk; Kw;whf fhe;jg;Gyj;jpy; ,Ue;J ntspNaWk; tiu jlj;jpDlhd kpd;Ndhl;lk; Neuj;Jld; khWtijf; fhl;Lk; tiuG.