--- · PDF file9/12/2013 · 3 3625 5. rileleSlrisaieir erainGoru: $g ofl g ut or9lcb rSleingf L- r-Lb G1u$p oainGlarrur $ $eueraurengt e1afllisuu@Lb r5) ei;rq ar$$leiir a6lenerrar

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(sr) gGr $)eop erarreooorrq b GolguL-r sl@l ereiiureo euurq ri Clsnainreoer '

(g) ero roneri qGTrurnein LofgLb pgL-rlnein eraineuoflricarseo ul ri Clsnaimreoou'

($l) e Lo Lonelr qGTnrrnein aernarflBarsqLb, IDITDULL $lgrlreinaairtarflrieo s q Lb Clsnaolrreoorr.

(r.r. ) e LoLo nelr $lgrrlneiir erainatfl rieosq Lb LolrguLL qGrlrrrnein

eroonarfl riars q 6 Cls naiur relrou

Isotopes have :

(u) same mass number but different atomic number

(b) same proton number and neutron number

(c) same proton number but different neutron number

(d) same neutron number but different proton number

3. eni Lglul6D Gls neireos ugl6itr u ra Sue$$g1c;iror painrq6in $616:

(et) $looeuuns zai-nrGIirg OOp+ 5-:o5 eS ; 55'Dar

(g) paxuuns reirenG'rng 6Opp $*ppf 15 er:'''

($) $lamruns e-eirenGungl 6O,rp $*p-p e'$L el$aLr

(r+) GLof sainr- e{6o6rrpgl tD

According to relativity, the length of a rod in motion :

(u) is less than its rest length

(b) is same as its rest length

(c) is more than its rest length

(d) a1l the above

4. rq7n6in6l6iu rOrilg zrflu--r genp u91el +nnq 16leinenqg$pLb 6ur@risuuLnp

$leoeuu91ei:

6G+nGrnu qseir ereinueoal :

( et ) zrd $u u nafl eu er$ls ril einGeornrL-Lb 610 uOApSl

( g ) Gler ofl u5@ ens6oslr96l e-19ri19eoeuo4 (distortion) elD u Odlpgt

($) 6r$ u tr6ijT goeoar erps Gler.ruur-oenrdlpgt'

( r.r. ) GleuofluSr@6 Gon@ (load line) p6upr6n

Improper biasing of a transistor circuit produces

(u) heavy loading of emitter current

(b) distortion in the output signal

(.) excessive heat at collector terminal

(d) faulty locaiion of load ljne

p ar eu r-r51eu .grenro6'lmst.

HSE SEPTEMBER 2013 www.kalvisolai.com


3 3625

5. rileleSlrisaieir erainGoru: $g ofl g ut or9lcb rSleingf L- r-Lb G1u$p oainGlarrur $$eueraurengt e1afllisuu@Lb r5) ei;rq ar$$leiir a6lenerrar nel psg6leinpg.Q'? rlLoar. unrsrf,leoo er9leoe

(.si) +g!ungLb(.e;- ) GLoeil Grnnri6l Clsueiut'A6lmsr

(6) E1! Gpnridl Gleuebu06lpgt

(m) gpe0cil GLoeL GpnBSqLb r9leinorfi E$ GBnr;dlqLb Gleuelr@Lb.

In Millikan's oil drop experiment, charged oil drop moves under the irLfluence of electricfield. Now the viscous force:

(r) is zero

(b) acts downwards

(c) acts upwards

(d) acts first upwards and then downwards

6. r-61eingrrr6 Gluppeirar reirafrfp rGer;nsuuligr A6iiTCIl, &S rfleiirqo$arpe'r.l u eir afloafleu Gs nril mrer9li6lrnsr ?

(.s ) Gsnon$Spg GeuoflGu (+) epei, u rJu r91ein GLoeu

($\ Csren$$1ein zrqpb (") 0<O Lourrlg Gpneoarorfl$1g eruunoA hollon' rnetat batl carning an electric charge produces no electric field at points :

(a) outside the sphere (b) on its sr:rface

(.) inside the sphere (d) at a distance more than twice

7. r5lein sn$p geneus6rfl6in +ppcir(er) rllei'rqeu$$fgLb Lo[gLb sn$pu qeu$$l@gLb gG,r +r6nerins upqdeinpem

( g) 6CO qeurasqg&1gLb Gl+ril1g$pnsu u pqdeinpem.

(O) ,ilni, q6Dg$ctu Lrr6q6lpgl.

(n) sngpu Lt6Dg6ei; u[6q6]pgl.

In an eleckomagnetic wave :

(u) Power is equally transferred along the electric and magnetic fields.

(b) Power is transmitted in a direction perpendicular to both the fields.

(.) Power is transmitted along the eiectric field.

(d) Power is kansmitted along the magnetic field.

[ $]Crtq" / Turn over



a

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8.

(g) u nnarerii Gsnr*Lqein $ar+enur(n') qer9 u9ein al 6n6rr6ool

(b) the line of sight direction

(d) the curvature of the earth

zuri +ldlriGlou ain +teoeuaoir r5leiirufrgeug :

(g ) peur Jr6o6D u r6.r6D6n

(O) etu.,.oR roamrreuu L.r [6]6o6n

High frequencv rr aves follow :

(u) the ground wave propagation

(.) ionospheric propagation

9. $trrca algeir sneleuGelrn lSrrrfleb sLbGl+ algoflenen Glpnrus o6]r uneruun -Cler arorseu& seueorau6 sLbrileour uuoinu@$p& srrJermLb :

(et) srg5lLb 6pein er$lsA(+) 61.i, penr ereror er$sLb

(6) greu<g Gs nemr or9leusgt6aren $1gLrq agleoe e1$lsLb

(m) greug Ganem oFleusgt&snen $l1guq oglen+ geopqPhosphor-Bronze wire is used for suspension in a moving coil galvanometer, because ithas :

(u) high conductivity

(b) high resistivity

(.) large couple per unit twist(d) small couple per unit twist

10. ,uFe56 +1@L riolgufl.in g(E +l1gl6s19$gsqgrionen rSlenenru q €DDeu :

(er) 8.8 MeV (g) 8s Mev (gl) 1e3 Mev ( r.r.) 41.3 MeVThe binding energy per nucleon of roFe56 nucleus is :

(r) 8.8 MeV (b) 88 MeV (c) 493 MeV (d) 41.3 MeV

11. 1 *,gLb rfleiirgrrrgoeirar 6CU epp r-6leingrL_rruseir Glerpflr$$cil i 6 $rarr--$Gpnareuoflel eoeu6suurrrrcil .srerpgri;g @aoL-Gu s-puGLb e6lyr@ o,glar+uglein

Lo$)uq :

(et) gxrOe u (g)10eN (g) ex10-e N (n') e NThe repulsive force between two like charges of 1 coulomb each separated by a distanceof 1 m in vacuum is equal to :

(a) 9x10e N (b) 10e N (") 9x10-e N (d) 9 N



72' 0005 6 -el66D6g6b 2500 Gsr@oeir zeir.n E6p6nflugein rfg 6000 a ereoeu$orgoeiien gaflureogl Gprig$prsu u@dleinpgrl ltpuin G.r6. ourfleoe 6r6irr.

13. 6 f nLoein eg eo eiro6lei-; Eppeu Lqris u Lr rr .""Gu nrrneirGrgLbGrng GpneiirgLb ourfl :

(er) auGL_nrioiu (Stokes) orf)(+) grir.q olGrnrieru elrfl (anti_stokes)

(Sl) eiuGrnd Lo$gLb gainrLq6iuGt-rri6iD 6, rflscir

( r.r', [rG6u 6u tti

In Raman effect, if the scatterecl photon gains energy, it gives rise to :(u) Stokes line(b) Anti-stokes line(.) Stokes and anti-stokes Iines(,1) Ravleigh line

el L1! u eo ru9 eu nelr5].

(g) unu-l .+ y! erQeiirar Lo

( n) .+ppel etglo8oiireorLo

3626

(er)a

A lighi of2500 lines.

(,) 3

(.gr ) 2

wavelength 0000 ,i is inciclentThe maximum order is :

(b) 2

(rn) +

grating 0.0Olm w.ide with

(.1) 4

et$ls gspeoeuLr

(6) 1

normally on a

(.) 1.

L4' clLrnrJeir @6i,Tdl6in gafl rdrein GleLroflGufg +pp6u 3.3 ev ererfrer, uuein Ggnrriset$lriGeuain:

(g) gxlot+ H, (g) 8xroro uz (St) sxro20 uz (r_r,) +x101a Hz

I[#:i1.':*ton of a photoelectric maierial is 3.3 ev. The threshold frequency will

(r) 8x1014 Hz (b) 8 x 1010 l{z (.) 5x1020 Hz (.1) 4x10h I{z

15. Cleueineru 6fl6 _=_- 6rlld;lugl6ijl

( er ) r-6leingnrr .si gllergleiireoLo

(6) -,op er$torgeirarLo

Lenz's law is in accordance lvith the(u) conservation of charges(c) conserv.ltioll of momentum

law of :

(b) conservation of flux(d) conservation of energy

[ $)guqs / Turn over



t-

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16. Geu+rfleu Clpdl"q @o;!&Etsgu r9lein :

(er) dlonrisfl $)aro e1g16aoflein erainarflrimseour erSlr el1 +6l6D6u etgl6oerfleinerarraaf[i eos et$sLb.

(+) .g +61 ar eu u9l ei elglrisaflein ereunemfl riaro eur u.r

grg) 656rfl 6ifl erenremflBens er$lsLb.

er9lr 6lorrie8 $) areuu9lei.>

(61) .:>r,+61eon, u9lg Lb Serrril8 peoou9lgb cl{g)r;56rfl6in ermrarfliens sLDLb.

( r.r.) Sorri&61 pareuu9en e{gx656ir $l1ry&sngt

After pumping process in laser :

(u) the number of atoms in the ground state is greater than the number of atoms inthe excited state.

(b) the number of atoms in the excited state is greater than the number of atoms inthe Sround state.

(.) the number of atoms in the ground state is equal to the numLer of atorn:< in theexcited state.

(d) no atoms are available in the excited state.

1.7. o6l@ ppaflei;r el6D(g :

(el) C2N-rm 2 (+) il -zc-zThe unit of permittivity is :

(a) C2N lm-2 1b) Nm2C-2

(6,) u,o-,

(c) H m-1

(r,r') Irt C-z,r-z

(d) NC-2m-2

18. 6<O qdrnfl rfleingrr-r-rtusoflein rfleinenqg$g +pp6b (U) _ gCq6.

q. q,(el) 2' 4T€or

q, q,\%) 4tr en r ($) pE cos 0 (n) pE sin 0

Electric potential energy (U) of two poini charges is :

9r Qz

4r eot (.) pE cos 0 (d) pE sin 0(b)(u)91 9z

4r en 12



7

19. t6ein Geu$lu a-eonaffiein (electrochemical equivalent) .9{6u(g :

(.a ) dlGeundlrynLb a,g1Lb (+) 6lGordlTnLb

6lGarndlqnLb(")

qLbL9luri

&,,.g,]6

grir9lu ri a9lennLq 6lGeundrlnLb

The unit of electrochemical equivalent is :

3626

(6r)

(r) kg. coulomb

kgamPere sec

20. eLbr9Li *gafler5l6rdeirafluf flu5lein

(et) qeurisn$p6

(b)

(d)

kgarnpere

coulomb(.)

kg

that passes

(b)

(d)

erlnd),i,

Y

( r+ ) sn rfl eoss eir

the curent from the coil to the external

split rings

brushes

Cl+uebu nL-@rilqrflur Gsu :

(r,r.) AND

(d) AND

I Sl6rq* / Turn over

,bgl qp$ &pg615 r6leinGemnrr$arp unuB GleurqLb ong$ao+LTOILI U :

("A) rflonq u r-r ou eoorur Lb

(0 ) pCCq ou eoenurra oeir

The part of the AC generatorcircuit is :

(u) field magnet

(") slip rings

21.. Glsn@rlsu u L-@eiror +leoLou r9leir

A

B

(gt) Nor (g) EX-OR

The following arangement performs

A

(b) EX-oR (c) oR

(6) oRthe logic function of :

Y



23. "'.Gunsnebr, eoLoris6be6in G+npeoelru9 einr g +>trri-eq 6op a_' s$$ei gofl uglein

$leneGorsLb

(er) errrir-6lg ecurs$$leu reirenenp o$r +y$sions 6Cf,igrb

(g) .srrndlg esrra$peb L6ir6ir6og' o9r lgeopernu 6Cl,ilS,(6t) errndtCq eors$$eu zeirorpf6 +LoLons $t65ri1qLb.

(r+) er l*rir511g earrs$$el lei'ren eop o61r cl$)sLonsGorn =1ioglgeop ou nsGeu n 6t Cryt;Cq aD

According to Focault and Michelson experiment the velocity of light in a rarer mediumis:

(u) greater than in a denser medium

(b) lesser than in a denser medium

(.) equal to that in a denser medium

(d) either greater or lesser than in a denser medium

(et) sS

3626

22. Geus e-!u$$ reoeus6rfl6b rueinr@Lb lgoririor9luunein :

(.s) +npnpam $ri (.gr ) s6rr fir

(0) Sr* G+nr-guLb

The coolant used in fast breeder reactor is :

(u) light water (b) heavy water

(c) liquid sodium (d) liquid helium

f Fr:) - 7

The angle between the area (A) and A is

(a) 0 (b) . (.) * (d) +lt

(") 5lr- eyfre$ u.l Lb

(CI) ;(er) "'



3626

25. Grairigairi- sneirerGeor r-6urflei, lgflLrrgrr L8eirGemnrr$$Sg a$eusel 30"aLbE+ a19erflein por'$$aoen 90" $gLrrglu dl6iT ercp r-6leinGalnrr$$pg s.DLrOLber9 eu s eir

(er) 30' (s)oo' (g) e0" (or.) o.in a tangent galvanometer, for a constant current, the deflection is 30.. The plane ofthe coil is rotated through 90". Now, for the same current, the deflection will be :

(a) 30' (b) 60' (.) e0" (d) 0.

25. GLo+ir (Maser) Glunlgonnsu rueinu@$pLru@arg :

(er) i-un on$p et uaflseir

(g) unTn sr$p +l u erflseir

(S) .'"CluG7n sn$g eruerflaeir

(r-r,) run LofgLb "'.CluGr1n sr$p etuerflseirMaser materials are :

(u) diamagnetic ions

(b) paramagnetic ions

(.) ferromagnetic ions

(d) dia and ferromagnetic ions

27. ClrOLr er u aflu-L nrilg Lb $lpararu Glu$Eeirenenou:

(er) ,6lgi q neiirsei- (g) ct-gseiis#The ionisation power is maximum for :

(St) "y-s$tfroc;ir (r'i ) B-gseireeir

(a) neutrons (b) o-particles (c) ^y-rays (d) p-particles

28. e(D CE suu Clr1gri61u06irT p@gpl .et$lftGleraimenflel r6leiirenq4$pu G1u66sLirA' ereinpnel, prglq Clour@ er$riGloraimerufleb r-6leirenq4$pu Glulgrisib :

r*r) f (.+) Jra, (o) * (*)

AM

^tE

AM

J'

A'' 't5(a) ; (b) ..,D er (c) ^,

(d)

In CE single stage amplifier if the voltage gain at mid-frequency is Ar, ihen the voltagegain at lower cul off frequency is :

[ 6(Erq* / Turn over



3626

29. gouGern19 err$eopqLb (rr$arpqrn) 6femr@ Ll6urLrsffmsu .!lflpg gOCl+sain$t&1g 50 sir.'dlsero.r etglurorpein GpnrisLb :

(et ) ur-$$lcil Erflrreoer;$ pa6lir6s(g) luirpp et$ riGlou aon'seoon 6n5u r€Delrgl eroflg ereinupneir

($) SO Hz oeiirug @$$lure$eb r-6leinarn$pei .gg1uqBaleir el$riGeuain6r6nLlpn6D

(n) eo+eosr9gleiror Gpateu u9ef a'lnp Starr1++ebseoon $ris.The purpose of dividing each frame into two fields so as to h'ansrrit 50 r.iervs of thepicture per second is :

(a) to avoid flicker in the picture(b) the fact that handling of higher frequencies is easier(") that 50 Hz is the power ilne frequencv in Inclia(d) to avoid unwanted noises in the signal

30. RLC Clpnrri Longpar+ rddnGenrr s ap$)eo rdeinGarr ' L_$6pgArlloireorg$p$$tplgLb @tarrGur zeieir orr Goupl rnS\ 30.. .+:.,fjldrrClpnlguuein rd ein LogLrq 17.32 O. dldr parrugein Lo$Lrq :

(sr) 30 o (g)t0 o (O) u 3r o (--, 1 ;rt (rIn RLC series ac circuit, the phase difference between cuuent and

'oltage is i0.. The

reactance of the circuit is 17.32 Q. The value of resistance is :

(u) 30 o (b) 10 o (.) 17 sz a (.1) 1.732 Q

ugSl -rrlPARr-rr

19dlu rl' erenarGu gt Lb u$leoon$gr oslornriaqqrilq orglen ruofl 6so4 Lb : 15x3=45Note : Answer any fifteen questions.

31. dleiirqeu$$ten g11l qdrafl u9el rdeinenqgp;pLb 616rD[rlr[]1.

Define electric potential dt a point in an electric field

32. g:eooroupp greuria,gaeir ereinp nel eroinar? $g er@$g6snr@sui, p(Dr.\Arhat is non polar molecule ? Give any two examples.

33. 0'c el pdGTnLb o rnr9 u9lein r6letrpar r 10,o. alpeiir rfldnpeo r Gloruu$)eneu oaior0.004/"C, $rfleiir Glsr$lpmeuuileb gpeiir r-6lein peoraorur6 san66l@. ODE6Darrrr$flu o0ar6o$eopri a,gs.The resistance of a nichrome wire at 0'C is 10 0. If its temperature coef{icient of resistanceis 0.004/"C, find its resistance at boiling point of water. Comment on the result.

10



11

34. rfrisr$51 $)pein (superconductivity) ereinp nel ereinen?

l\trat is su perconductivity ?

Distinguish between electric power and electric energy.

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36. 5 A L6ldrGennrrLb rnqLb 50 Gls.d. 6*Cpoi, gO 6Lp6 2><10-3 T sn$p$gtainr*eu Gl s nomr- s n$g r-r q eu$$ $ g G)eru g$p ns eo ar ris u u @ 61 pg. s rpi$l ugl ein

u651 Gl+uelu@Lb ogleoe6o u.t li s.r6uns.

A conductor of length 50 cm carrying a current of 5 A is placed perpendicular to amagnetic field of induction 2 x 10 - 3 T. Find the force on the conductor.

37. dl# or$p$ glr6rn-6il upf)u "'"un1Gr erglpsarorri a,gs.State Faraday's laws of electromagnetic induction.

38. 1000 Hz .sr$ ft6ler ain Gls nairi r Long$)ene 16leinGen'nr-r deinaf fleir@aneddr{iolrur@eiren LdeinGpr;dlu5lein rdleirGpriCq dp6ir 2 pF. GaueLr@$puu@Lbdleiref utig aSlaosugl6i'i LopLrq rms Lc$-.,q 10 V oaid;, a$fleb urqLb Glpnlguueinr-6leiirCarrr-' $alpri sneiris.

A capacitor of capacitance 2 pr,F is in an a.c circuit of frequency 1000 Hz. If the rmsvalue of applied emf is 10 V find the effective current flowing in the circuit.

39. at nenLb $euppLona$ Gp,neinp& snyemLb ereinem?

Why the sky appears blue in colour ?

40. apEdp $lp6in 6raidr - or.1 6i) f urgl.

Define specific rotation.

4L. Geuei Glsu6D6DLt Glup Gorlanrqu $u$peoeosoir utr6oor?

What are the conditions to achieve laser action ?

[ $]Ouq* / Tum over



3625

42.

72

43.

44.

.I8.

49.

50.

BO u+ap66 X-s$n o$aflLbq o$araro6)gg zru@6 Gurgt 6"27,Gonam$pai;l61s ClpqgrisLonar arrfl Gpneingdlpg. X-s$lfleiir 96D6D66nLb 0.58 A, ererflel 6fdn@L9l one,ll g ponrar sqgrilg Sl en L-Gu reircn Glp r6n 6Dagl araurri saonBdl @ s.

An X-ray diffraction oI a crystal gave the closest line at an angle of 6.27,. If thewavelength of X-ray is 0.58 A, find the distance between the two ileavage planes.

pg$O r6leineor119$pLb (Gler L-@ rdeiirare$plb) - 6u6o[urgl.

Define stopping potential.

qDrD dlurrfl - or.r6i)rru-rmt.

Deflne Curie.

45. s$lrflu6s+ 6larpeq or9l$aru-rri a,Es.

State radioacti\.e law of disintegration.

45. q por91u: eu nen geop6 sr$$ ererrpneo ereorca?

$/hat is an extrinsic semiconductor ?

47. qTnein8oiurenTu uueinu@$$l NOT Gsr (ernugen)i1ein +$gr_L rr$eop ouarpo.

Draw the circuit diagram of NOT gate using a transistor.

clung Ger-@seir ereinpnel ereineu? 41eoou eyein a1elar ng 416op{i5u Lr@6l6inp6rr.

lAtrat are universal gates ? \44:ry are they called so ?

(A+n) {a+n) : B erem Elgq*

Prove the following logic expression (A+e) (e+n) = e .

pnq Glpnareuq ereinpnel ereinen?

\44rat is meant by skip distance ?



ug6 -mlPARr-rrr

gdluq, o9eon orerm 60 $1g eod,nrquune orgleo ru oflriaeii 6.r-5p gr eiren' 11 efl emnBsofl eb erener G u gt Lb SJgt ergl ern&s qg6 gedlen tu erflris Gataur@Lb.

13 3626

7x5=35(')

(i,

51.

(ii, GparoitL.ll@Lb SIL_rilsofleb u r_ratsoir oteorJa.

Note : (, Answer question no. 60 compulsorily.(ii) Answer any sl: of the remaining 11 questions.(ii, Draw diagrams wherever necessary.

@O@eoalOes@ dlei;r Gpr;dlugein psr_rqein uTLrq 90 Gte.rf.2. eei,osl(E pe @aqgLb2'5 dl d6u rf rrri @en r-G) o o' usr efu dl rfr$g ena.rris u u L-@ eironem. r6i ein cp,;al -Jg,400 V greu$gr_eirr $)aramri;ouur@ rfloinGemfpLb Gleuluuu@6pg1 6]_6rfl6, el1$fGpridl eoeurtsu ur@eiron pareu rfleinerflu d.l +,opni, ereireuonq ?

Lf""rJi":.t-ltiii]1-"] fhf capacitor have an area of 90 cm2 each and are separatedoy z.) mrn. ,the capacitor is charged by connecting it to a 400 V supply. Uor.i, -r.telectuostatic energy is stored by th-e capacitor ? "

.'.un7G ,6ar r.fi eiirarns -gpgell Srao: rLc oi$laru6 a.fl Genpenen goeu Lb

S6L5l;a.State and verify Faraday's second law of electrolysis.

Cleud eungdl rfieinoeu$$eir Gl+u.le nrrqeoe,m u r$gtL_ein orgleu rft.

Explain the workrng of Leclanche cell with a diagram.

s nef el emr rf r-reo 7 gl Lb l6rr_7no Lo nSp Lb Gr6op 6D u.r orgl on6 g,s.Explain the conversion of a galvanometer into an ammeter.

55. gO dl6itr glanlgq reiir (Inductor) Glpnr_riq Glsraru.ru- gfglgrisnelr Gsn6oo.r6i)u.l6,r19661.

52.

53.

Obtain an expression for the energy associated with an inductor.

[ $6Lrqs / Turn over



3626

56. Cler eirGlot nofl, gafl ofleusel erom 1.33 Glsnenu g1g Genuqu ureu$$ein rfg 30.Gsnam$$1eb u Odlpgl opGl rlnofl u qri s$oo r1 pp Lo nareu Loneffi Glsnan@ +,lnul6000 A elareu$olLb Glsnaiuu s(ElbuL6DL GgrflApgr ereoi eb, Genuqu ureu$$eirrrflsri 61flu pqLoein snaina.

A soap film of refractive index 1.33 is illuminated by white light incident at anangle 30'. The reflected light is examined by spectroscope in which dark bandcorresponding io the wavelength 6000 A is found. Calcutate the smallest thickness ofthe film-

57. X-s$lrfl ein u ainqseir B,65lar6ir 6r(ggls.

Mention any five properties of X-rays.

58. gertl rrtrlp rdlein s 6D afl6irT ell6o ror-r Lj Lolg Lb 6suebu@Lb oslp$eop L'l r$5lroino,9leu rfl .

Describe photoelectric cell and explain its working.

59. Gr6u 6l+u6nu er@$516sru@r-ein erglou rfl.

Explain time dilation with an example.

50. 1kg er aroqeiran nrU235 r9lorelgLbGung 6louofluu@rjr gfpeoeuri soorri61@s. gigr-Qonqlianelr €pp6D 200 MeV eremri Glsn6irs. 4lielsnrGtrn erain 6.023 x 1023.

L6rrgl 6616i)L6o ut 6lGeunei.:nr Lcerofl u9lg Lr (Kilorvatt hour) p1gs.

Calculate the energv released n'hen 1 kg of 9rU115 undergoes nuclear fission. Assume,energy per fission is 200 MeV. Avogadro number is 6.023 x 1023. Express your answerin kilowatt hour also.

€)l6D6D5/oR

geos geinfl en samrGlr@riouuLL srftu6iir 3ll Lrlldlu Gll n1gofl el C1a g1mro1,

zu9lrfl geinflcfu loirenenpuGuneb 1/8 u116 loirong. eluGrn6aflein GpnrJnuLonelr

6)J urSl6o6n{i s66n{i610s. (uCu d T1/2:5560.2!ain@seir. )

A carbon specimen found in a cave contained a ftaction of 1,/S of C14 to that present ina living system. Calculate the approximate age of the specimen.

Civen Tr2 for uC14-5560 years.

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61. sr6or .e{6D6DSS)OpOu9.io 6)+ureblnrenr erglan &go.Explain the n orking of a half wave diode rectifier.

62' Geuf ena*Gsn-eir Ssereb Gpnrrirgein pciireorLoeeir Lorng Lb (56Dpun056D6fr u,(ggr,.Mention the merits and demerits of satellite communication.

u195l -ry//pART-rV

gfluq : (i) 6r6Dolcurgirb Dn6in(g o9l6i-rrdiseD6(5 eflrfler ireo org]eo ru ai.ioeq Lb 4x10=40

\e$6D6ru L(bl LD $)r lE]soflei,, LLrEl66ir 6u6Drr6.

Answer any four guestions in detail.Draw diagrams wherever necessary.

rJlein stggrarar 6r6inp r6b ereinelr? r,rein $rgo,arenugoiir p@orao76 Ge rurge' zeiron9(E qehoflu9eU r6leinqeu$$l.fsr* C"nal*Jr, _gunwhat ls an electric dipole ? Deri'e an expression for the eleckic field due to an electric,,lipole at a point.:lone the equatorial bne.

r6lemGamnlL-Lb unqLb .r'plreun Gp^ri sr-$$uneb gg qeiroflugreb eni6pu unuret ri$$rionar Gsneneleour ou19ar9l.

3#ilffnsion for Magnetic induction due to an infinitely long straight conductor

deinLo nSfl ugeir pggl6xb, *- r: 1 LoSg Lb Geuelr@ Lb orglpLb gdluar$arpar91en61gs. (uL-Lb Gpener Srei.rareu) ,n*.iOO.Q.i_

"r*, $lpelr* 6r6i)[u]gl.Explain the principre, construction and working of a transformer. (Diagram notnecessary). Define its efficiency.

4qeoeuri Clg noirensar u_r uudru@p$l (p(g etsOn the basis of wave theory explain total internal

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Note : (,

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53.

64"

65.

66.er$ 6) 1nofl u elr u org orrilgs.

reflection.

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57. I.J. pnbeein Genpeneougein ppgl6ub'urn5t? ereu&rTneinsoflein L6leingrrL- parp$

pseoouri ("/rr) "ng1A

pnbeein G+npaoaneou o61ou rfl.

State the principle and explain J.J. Thomson's experiment in determining e/^ of an

electron.

68. G) u ugloinrSlrflrg $)argl pgrroneo6uLDn6rflugl6itr st6clLouq LopgLb Cl+uelunL6DL,-a9arrfl.

Desit'ibd the construction and working of a Bainbridge mass spectrometer in determiningthe ibotopic masses.

69. Gou-roburu@u Glu6661 ereingrneu ereloear? Ll[LOb G]u15r;6lu9leiir (Inverting)

Gleu6bu nl-mr o6lerr61gs.

What is an operational ampllfier ? Explain its rt'orking as an inverting amplifier ?

70. Gleur6b ar9l6rftis sr-uu ur$orEi Gsnain@, sexi;rffn r9'fl{q56 AM srpr9 Go-roar

Gleurqb e$p$enp er9larfl.

With the help of a functional block diagram, explain the working of a superhetelodlmeAM' feteiver.

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