Physics (ELECTIVE) ISC (TH)
Physics (ELECTIVE) ISC (TH)
Physics (ELECTIVE) ISC (TH)
(ANNUAL)
Sub Code - 117
Model Set
Physics (ELECTIVE)
HkkSfrd 'kkL= ¼,sfPNd½
I.Sc. (TH)
1- ijh{kkFkhZ mÙkj i=d ij viuk iz’u iqfLrdk Øekad ¼10 vadksa dk½ vo’; fy[ksaA
Candidates must enter his/her Question Booklet Serial No. (10
digits) in the OMR Answer Sheet.
3- nkfguh vksj gkf’k, ij fn;s gq, vad iw.kkZad fufnZ"V djrs gSaA
Figure in the right hand margin indicate full marks.
4- iz’uksa dks /;kuiwoZd i<+us ds fy, ijh{kkfFkZ;ksa dks 15 feuV dk vfrfjDr le;
fn;k x;k gSA
1
15 minutes extra time have been allotted for the candidates for
reading the questions carefully.
7- [k.M&c esa 20 y?kq mÙkjh; iz’u gSaA izR;sd ds fy, 2 vad fu/kkZfjr gS] ftuesa
ls fdUgha 10 iz’uksa dk mÙkj nsuk vfuok;Z gSA buds vfrfjDr bl [k.M esa 6
nh?kZ mÙkjh; iz’u fn;s x;s gSa] izR;sd ds fy, 5 vad fu/kkZfjr gS] ftuesa ls
fdUgha 3 iz’uksa dk mÙkj nsuk vfuok;Z gSA
2
In Section-B, there are 20 short answer type questions each
carrying 2 marks, out of which any 10 questions are to be
answered. Apart from this, there are 6 long answer type questions,
each carrying 5 marks; out of which any 3 questions are to be
answered.
3
[k.M & v @ Section - A
oLrqfu"B iz’u @ Objective Type Qestions
iz’u la[;k 1 ls 70 rd ds izR;sd iz’u ds lkFk pkj fodYi fn, x, gSa] ftuesa ls ,d
lgh gSA vius }kjk pqus x, lgh fodYi dks OMR 'khV ij fpfUgr djsaA fdUgha 35 iz’uksa
ds mÙkj nsaA 35 x 1 = 35
Question no.s 1 to 70 have four options, out of which only one is correct.
You have to mark your selected option on the OMR sheet. Answer any 35
questions. 35 x 1 = 35
The value of 0 is -
4
3- vkos'k 𝑞 ls ‘r’ nwjh ij fo|qrh; rhozrk ds eku ds fy, fuEufyf[kr esa dkSu lgh
gS&
(A) E = . (B) E = .
∈ ∈
(C) E = . (D) E = .
∈ ∈
(A) E = . (B) E = .
∈ ∈
(C) E = . (D) E = .
∈ ∈
4- fdlh xksyh; i`"B ds vUnj ;fn +q vkos’k j[k fn;k tk;s rks laiw.kZ i`"B ls
(A) q x 0 (B)
∈
∈
(C) (D)
∈
Which of the following is correct for total electric flux from the
(A) q x 0 (B)
∈
∈
(C) (D)
∈
5- oS|qr f}/kzqo dh fuj{kh; fLFkfr esa fo|qr~ foHko dk O;atd gksrk gS &
5
(A) . (B) .
∈ ∈
(A) . (B) .
∈ ∈
gksrk gS &
charged capacitor is -
Dimension of charge is -
6
oksYV
8- fuEufyf[kr esa fdl jkf’k dk ek=d ehVj
gksrk gS \
10- nks leku /kkfjrk ‘C’ okys la?kkfj= dks lekukUrj Øe esa tksM+us ij mldh
(A) 2C (B) C
(C) (D)
equivalent capacity is
(A) 2C (B) C
7
(C) (D)
11- ′𝜇′ viorZukad rFkk ‘A’ fizTe dks.k okys irys fizTe dk U;wure fopyu dks.k
gksrk gS&
angle of prism A is -
13- lkekU; lek;kstu ds fy, [kxksyh; nwjn’kZd dh vko)Zu {kerk gksrh gS &
(A) - (B) – fo x fe
(C) - (D) – fo + fe
8
The magnifying power of an astronomical telescope for normal
adjustment is -
(A) - (B) – fo x fe
(C) - (D) – fo + fe
(A) 𝛽 = (B) 𝛽 =
(A) 𝛽 = (B) 𝛽 =
9
(C) 9.46 x 1014 m (D) 9.46 x 10-14 m
(A) =( - 1) ( - ) (B) = (1 - )( - )
(A) =( - 1) ( - ) (B) = (1 - )( - )
(A) 𝜇 = 1 (B) 𝜇 = 2
(A) 𝜇 = 1 (B) 𝜇 = 2
10
Least distance of distinct vision for normal eye is -
(A) 𝜇 = + (B) 𝜇 = +
(C) 𝜇 = A + (D) 𝜇 = A -
(A) 𝜇 = + (B) 𝜇 = +
(C) 𝜇 = A + (D) 𝜇 = A -
21- fuEufyf[kr esa dkSu izdhf.kZr izdk’k dh rhozrk ¼ I ½ vkSj izdk’k ds rjaxnS/;Z
(A) I 𝛼 2 (B) I 𝛼
(C) I 𝛼 4 (D) I 𝛼
(A) I 𝛼 2 (B) I 𝛼
(C) I 𝛼 4 (D) I 𝛼
22- fuEufyf[kr esa dkSu izdk’k ds fy, ek/;e ds cnyus ls ugha cnyrk gS \
11
(A) vko`fÙk (B) viorZukad
12
(B) Phase-difference = (2n + 1) 𝜋
(C) Phase-difference = 2 𝜋
(D) Phase-difference = 3n 𝜋
(C) (D)
(C) (D)
(A) (B)
(C) (D)
Wave-number is equal to
(A) (B)
(C) (D)
14
(C) R = R0A2 (D) R = R0A3
(A) T0 = (B) T0 = 2
(C) T0 = (D) T0 =
(A) T0 = (B) T0 = 2
(C) T0 = (D) T0 =
15
34- fuEufyf[kr esa dkSu lgh gS \
(A) 1 (B) 0
(C) 10 (D) 11
(A) 1 (B) 0
(C) 10 (D) 11
(A) 𝐴̅ = A (B) C = 𝐴𝐵
(A) 𝐴̅ = A (B) C = 𝐴𝐵
(A) 𝜇 = (B) 𝜇 =
(C) 𝜇 = 𝐵𝐻 (D) 𝜇 =
Permeability is -
(A) 𝜇 = (B) 𝜇 =
(C) 𝜇 = 𝐵𝐻 (D) 𝜇 =
17
(A) 00 (B) 450
41- pqEcd dh T;kferh; yEckbZ ¼ Lg½ rFkk pqEcdh; yEckbZ ¼ Lm½ esa lEcU/k gksrk gS
&
(A) Lm = Lg (B) Lm = Lg
(A) Lm = Lg (B) Lm = Lg
18
43- fuokZr esa pqacdh; izo`fÙk gksrh gS &
(A) 0 (B) 1
(A) 0 (B) 1
∈
(A) C = (B) C =
∈
(C) C = (D) C =
∈
∈
(A) C = (B) C =
∈
(C) C = (D) C =
∈
19
46- fo|qr pqacdh; rjax ds lajpj.k dh fn’kk gksrh gS &
20
(A) 1 ev = 1.6 x 10-19 J (B) 1 ev = 10-19 J
(A) N = NO 𝑒 (B) N = NO 𝑒
(C) N = NO 𝑒 (D) N = NO 𝑒
(A) N = NO 𝑒 (B) N = NO 𝑒
(C) N = NO 𝑒 (D) N = NO 𝑒
(A) L = (B) L =
21
(C) L = (D) L =
(A) L = (B) L =
(C) L = (D) L =
55- fuEufyf[kr esa dkSu fddZgkWd ds izFke fu;e esa lajf{kr gksrk gS \
22
Which of the following is conserved in Kirchhoff’s 1st law ?
56- R f=T;k okys o`Ùkkdkj dqaMyh ds dsUnz ij I /kkjk cgus ds dkj.k pqEcdh; cy
(A) (B)
(C) (D)
current I is-
(A) (B)
(C) (D)
23
(C) 1 Vslyk ¾ 1 NA-1 (D) 1 Vslyk ¾ 1 Nm-1
(A)
(B)
24
(A) dwykWe (B) oksYV
64- fuEufyf[kr esa izR;koÙkhZ /kkjk ifjiFk esa dsoy la/kkfj= C jgus ij /kkfjrh;
25
(A) XC = (B) XC = 𝜔C
only capacitances C.
(A) XC = (B) XC = 𝜔C
A. Z = 𝜔R (B) Z = √𝑅 + 𝜔𝐿
Impedance of (L – R) circuit is -
B. Z = 𝜔R (B) Z = √𝑅 + 𝜔𝐿
(⃗ )⃗
(A) 𝐹⃗ = (B) 𝐹⃗ = I(𝑙⃗ x 𝐵⃗)
( ⃗ )⃗
(C) 𝐹⃗ = (D) 𝐹⃗ = I(𝐵⃗ x 𝑙⃗)
(⃗ )⃗
(A) 𝐹⃗ = (B) 𝐹⃗ = I(𝑙⃗ x 𝐵⃗)
( ⃗ )⃗
(C) 𝐹⃗ = (D) 𝐹⃗ = I(𝐵⃗ x 𝑙⃗)
(C) P = (D) P =
power ?
27
(C) P = (D) P =
(A) (B) 1
(C) 10 (D)
(A) (B) 1
(C) 10 (D)
[k.M&c @ Section-B
iz'u la[;k 1 ls 20 y?kq mÙkjh; iz’u gSaA fdUgha 10 iz’uksa ds mÙkj nsaA izR;sd ds fy, 2
28
Explain the capacity of a capacitor with S.I. unit.
Explain choke-coil.
9- pqacd ds {ks= esa nks ekud fLFkfr;k¡ dks fy[ksa & 1$1¾2
Explain AND-gate.
iz'u la[;k 21 ls 26 nh?kZ mÙkjh; iz’u gSaA fdUgha 3 iz’uksa ds mÙkj nsaA izR;sd ds fy, 5
30
Question Nos 21 to 26 are short Answer Type. Answer any 3 questions.
22- fo|qrh; f}/kzqo ds dkj.k fdlh fcUnq ij fo|qr&rhozrk dk O;atd izkIr djsaA 5
electric dipole.
23- vory lrg ds fy, fn, x, lw= dks LFkkfir djsa & 5
= -
= -
26- fuj{kh; fLFkfr esa fdlh NM+&pqEcd ds dkj.k pqEcdh; {ks= ds fy, O;atd izkIr
djsaA 5
31
Find out the expression for magnetic field due to a bar magnet in
broad-side on position.
32