CBSE Board Paper 2020 | Physics Class 12 - NEET PDF Download

 Page 1


 
 .55/1/1 1 P.T.O. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 23 h¢ & 
(I) Please check that this question 
paper contains 23 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) Code number given on the right 
hand side of the question paper 
should be written on the title page of 
the answer-book by the candidate. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>37 àíZ h¢ & 
(III) Please check that this question 
paper contains 37 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 15 minute time has been allotted to 
read this question paper. The 
question paper  will  be  distributed 
at 10.15 a.m. From 10.15 a.m. to 
10.30 a.m., the students will read the 
question paper only and will not 
write any answer on the  
answer-book during this period. 
 
^m¡{VH$ {dkmZ (g¡ÕmpÝVH$) 
PHYSICS (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
55/1/1
 
Page 2


 
 .55/1/1 1 P.T.O. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 23 h¢ & 
(I) Please check that this question 
paper contains 23 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) Code number given on the right 
hand side of the question paper 
should be written on the title page of 
the answer-book by the candidate. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>37 àíZ h¢ & 
(III) Please check that this question 
paper contains 37 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 15 minute time has been allotted to 
read this question paper. The 
question paper  will  be  distributed 
at 10.15 a.m. From 10.15 a.m. to 
10.30 a.m., the students will read the 
question paper only and will not 
write any answer on the  
answer-book during this period. 
 
^m¡{VH$ {dkmZ (g¡ÕmpÝVH$) 
PHYSICS (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
55/1/1
 
 
 .55/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE : 
(i) `h àíZ-nÌ Mma IÊS>m| _§| {d^m{OV {H$`m J`m h¡ – H$, I, J Am¡a K &  
(ii) Bg àíZ-nÌ _| 37 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ &  
(iii) IÊS> H$  – àíZ g§»`m 1 go 20 VH$ A{V bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m  
h¡ & 
(iv) IÊS> I – àíZ g§»`m 21 go 27 VH$ bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 2 A§H$m| H$m h¡ & 
(v) IÊS> J – àíZ g§»`m 28 go 34 VH$ XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K – àíZ g§»`m 35 go 37 VH$ ^r XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
5 A§H$m| H$m h¡ & 
(vii) àíZ-nÌ _| H$moB© g_J« {dH$ën Zht h¡ & VWm{n, EH$-EH$ A§H$ Ho$ Xmo àíZm| _|, Xmo-Xmo A§H$m| 
dmbo Xmo àíZm| _§o, VrZ-VrZ A§H$m| dmbo EH$ àíZ _§o VWm nm±M-nm±M A§H$m| dmbo$ VrZm| àíZm| 
_§o Am§V[aH$ {dH$ën {X`m J`m h¡ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m CÎma Xr{OE & 
(viii) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
(ix) Ho$ëHw$boQ>am| AWdm bm°J Q>o~bm| Ho$ à`moJ H$s AZw_{V Zht h¡ & 
(x) Ohm± Amdí`H$ hmo, Amn {ZåZ{b{IV ^m¡{VH$ {Z`Vm§H$m| Ho$ _mZm| H$m Cn`moJ H$a gH$Vo h¢ : 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
 
 
0
4
1
? ?
 = 9 ? 10
9
 N m
2
 C
–2 
 BboŠQ´>m°Z H$m Ðì`_mZ (m
e
) = 9
.
1 ? 10
–31
 kg 
 Ý`yQ´>m°Z H$m Ðì`_mZ = 1
.
675 ? 10
–27
 kg 
 àmoQ>m°Z H$m Ðì`_mZ = 1
.
673 ? 10
–27
 kg 
 AmdmoJmÐmo g§»`m = 6
.
023 ? 10
23
 à{V J«m_ _mob 
 ~moëQ²>µO_mZ {Z`Vm§H$ = 1
.
38 ? 10
–23
 JK
–1 
Page 3


 
 .55/1/1 1 P.T.O. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 23 h¢ & 
(I) Please check that this question 
paper contains 23 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) Code number given on the right 
hand side of the question paper 
should be written on the title page of 
the answer-book by the candidate. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>37 àíZ h¢ & 
(III) Please check that this question 
paper contains 37 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 15 minute time has been allotted to 
read this question paper. The 
question paper  will  be  distributed 
at 10.15 a.m. From 10.15 a.m. to 
10.30 a.m., the students will read the 
question paper only and will not 
write any answer on the  
answer-book during this period. 
 
^m¡{VH$ {dkmZ (g¡ÕmpÝVH$) 
PHYSICS (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
55/1/1
 
 
 .55/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE : 
(i) `h àíZ-nÌ Mma IÊS>m| _§| {d^m{OV {H$`m J`m h¡ – H$, I, J Am¡a K &  
(ii) Bg àíZ-nÌ _| 37 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ &  
(iii) IÊS> H$  – àíZ g§»`m 1 go 20 VH$ A{V bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m  
h¡ & 
(iv) IÊS> I – àíZ g§»`m 21 go 27 VH$ bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 2 A§H$m| H$m h¡ & 
(v) IÊS> J – àíZ g§»`m 28 go 34 VH$ XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K – àíZ g§»`m 35 go 37 VH$ ^r XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
5 A§H$m| H$m h¡ & 
(vii) àíZ-nÌ _| H$moB© g_J« {dH$ën Zht h¡ & VWm{n, EH$-EH$ A§H$ Ho$ Xmo àíZm| _|, Xmo-Xmo A§H$m| 
dmbo Xmo àíZm| _§o, VrZ-VrZ A§H$m| dmbo EH$ àíZ _§o VWm nm±M-nm±M A§H$m| dmbo$ VrZm| àíZm| 
_§o Am§V[aH$ {dH$ën {X`m J`m h¡ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m CÎma Xr{OE & 
(viii) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
(ix) Ho$ëHw$boQ>am| AWdm bm°J Q>o~bm| Ho$ à`moJ H$s AZw_{V Zht h¡ & 
(x) Ohm± Amdí`H$ hmo, Amn {ZåZ{b{IV ^m¡{VH$ {Z`Vm§H$m| Ho$ _mZm| H$m Cn`moJ H$a gH$Vo h¢ : 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
 
 
0
4
1
? ?
 = 9 ? 10
9
 N m
2
 C
–2 
 BboŠQ´>m°Z H$m Ðì`_mZ (m
e
) = 9
.
1 ? 10
–31
 kg 
 Ý`yQ´>m°Z H$m Ðì`_mZ = 1
.
675 ? 10
–27
 kg 
 àmoQ>m°Z H$m Ðì`_mZ = 1
.
673 ? 10
–27
 kg 
 AmdmoJmÐmo g§»`m = 6
.
023 ? 10
23
 à{V J«m_ _mob 
 ~moëQ²>µO_mZ {Z`Vm§H$ = 1
.
38 ? 10
–23
 JK
–1 
 
 .55/1/1 3 P.T.O. 
General Instructions : 
Read the following instructions very carefully and strictly follow them : 
(i) This question paper comprises four Sections – A, B, C and D.  
(ii) There are 37 questions in the question paper. All questions are 
compulsory. 
(iii) Section A – Questions no. 1 to 20 are very short answer type questions, 
carrying one mark each. 
(iv) Section B – Questions no. 21 to 27 are short answer type questions, 
carrying two marks each. 
(v) Section C – Questions no. 28 to 34 are long answer type questions, 
carrying three marks each. 
(vi) Section D – Questions no. 35 to 37 are also long answer type questions, 
carrying five marks each. 
(vii) There is no overall choice in the question paper. However, an internal 
choice has been provided in 2 questions of 1 mark, 2 questions of  
2 marks, 1 question of three marks and all the 3 questions of five marks. 
You have to attempt only one of the choices in such questions. 
(viii) In addition to this, separate instructions are given with each section and 
question, wherever necessary. 
(ix) Use of calculators and log tables is not permitted.  
(x) You may use the following values of physical constants wherever 
necessary. 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
   
 
0
4
1
? ?
= 9 ? 10
9
 N m
2
 C
–2 
 Mass of electron (m
e
) = 9
.
1 ? 10
–31
 kg 
 Mass of neutron = 1
.
675 ? 10
–27
 kg 
 Mass of proton = 1
.
673 ? 10
–27
 kg 
 Avogadro’s number = 6
.
023 ? 10
23
 per gram mole 
 Boltzmann constant = 1
.
38 ? 10
–23
 JK
–1
 
Page 4


 
 .55/1/1 1 P.T.O. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 23 h¢ & 
(I) Please check that this question 
paper contains 23 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) Code number given on the right 
hand side of the question paper 
should be written on the title page of 
the answer-book by the candidate. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>37 àíZ h¢ & 
(III) Please check that this question 
paper contains 37 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 15 minute time has been allotted to 
read this question paper. The 
question paper  will  be  distributed 
at 10.15 a.m. From 10.15 a.m. to 
10.30 a.m., the students will read the 
question paper only and will not 
write any answer on the  
answer-book during this period. 
 
^m¡{VH$ {dkmZ (g¡ÕmpÝVH$) 
PHYSICS (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
55/1/1
 
 
 .55/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE : 
(i) `h àíZ-nÌ Mma IÊS>m| _§| {d^m{OV {H$`m J`m h¡ – H$, I, J Am¡a K &  
(ii) Bg àíZ-nÌ _| 37 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ &  
(iii) IÊS> H$  – àíZ g§»`m 1 go 20 VH$ A{V bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m  
h¡ & 
(iv) IÊS> I – àíZ g§»`m 21 go 27 VH$ bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 2 A§H$m| H$m h¡ & 
(v) IÊS> J – àíZ g§»`m 28 go 34 VH$ XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K – àíZ g§»`m 35 go 37 VH$ ^r XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
5 A§H$m| H$m h¡ & 
(vii) àíZ-nÌ _| H$moB© g_J« {dH$ën Zht h¡ & VWm{n, EH$-EH$ A§H$ Ho$ Xmo àíZm| _|, Xmo-Xmo A§H$m| 
dmbo Xmo àíZm| _§o, VrZ-VrZ A§H$m| dmbo EH$ àíZ _§o VWm nm±M-nm±M A§H$m| dmbo$ VrZm| àíZm| 
_§o Am§V[aH$ {dH$ën {X`m J`m h¡ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m CÎma Xr{OE & 
(viii) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
(ix) Ho$ëHw$boQ>am| AWdm bm°J Q>o~bm| Ho$ à`moJ H$s AZw_{V Zht h¡ & 
(x) Ohm± Amdí`H$ hmo, Amn {ZåZ{b{IV ^m¡{VH$ {Z`Vm§H$m| Ho$ _mZm| H$m Cn`moJ H$a gH$Vo h¢ : 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
 
 
0
4
1
? ?
 = 9 ? 10
9
 N m
2
 C
–2 
 BboŠQ´>m°Z H$m Ðì`_mZ (m
e
) = 9
.
1 ? 10
–31
 kg 
 Ý`yQ´>m°Z H$m Ðì`_mZ = 1
.
675 ? 10
–27
 kg 
 àmoQ>m°Z H$m Ðì`_mZ = 1
.
673 ? 10
–27
 kg 
 AmdmoJmÐmo g§»`m = 6
.
023 ? 10
23
 à{V J«m_ _mob 
 ~moëQ²>µO_mZ {Z`Vm§H$ = 1
.
38 ? 10
–23
 JK
–1 
 
 .55/1/1 3 P.T.O. 
General Instructions : 
Read the following instructions very carefully and strictly follow them : 
(i) This question paper comprises four Sections – A, B, C and D.  
(ii) There are 37 questions in the question paper. All questions are 
compulsory. 
(iii) Section A – Questions no. 1 to 20 are very short answer type questions, 
carrying one mark each. 
(iv) Section B – Questions no. 21 to 27 are short answer type questions, 
carrying two marks each. 
(v) Section C – Questions no. 28 to 34 are long answer type questions, 
carrying three marks each. 
(vi) Section D – Questions no. 35 to 37 are also long answer type questions, 
carrying five marks each. 
(vii) There is no overall choice in the question paper. However, an internal 
choice has been provided in 2 questions of 1 mark, 2 questions of  
2 marks, 1 question of three marks and all the 3 questions of five marks. 
You have to attempt only one of the choices in such questions. 
(viii) In addition to this, separate instructions are given with each section and 
question, wherever necessary. 
(ix) Use of calculators and log tables is not permitted.  
(x) You may use the following values of physical constants wherever 
necessary. 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
   
 
0
4
1
? ?
= 9 ? 10
9
 N m
2
 C
–2 
 Mass of electron (m
e
) = 9
.
1 ? 10
–31
 kg 
 Mass of neutron = 1
.
675 ? 10
–27
 kg 
 Mass of proton = 1
.
673 ? 10
–27
 kg 
 Avogadro’s number = 6
.
023 ? 10
23
 per gram mole 
 Boltzmann constant = 1
.
38 ? 10
–23
 JK
–1
 
 
 .55/1/1 4 
IÊS> H$ 
ZmoQ> : ZrMo {XE JE àË`oH$ àíZ _| g~go A{YH$ Cn`wº$ {dH$ën Mw{ZE : 
1. ¶{X {H$gr ~ÝX n¥îR> go JwµOaZo dmbm ZoQ> {dÚwV² âb³g eyݶ h¡, Vmo Bggo ¶h {ZîH$f© 
{ZH$mbm Om gH$Vm h¡ {H$  1 
(A) Bg n¥îR> go H$moB© ZoQ> Amdoe n[a~Õ Zht h¡ & 
(B) Bg n¥îR> Ho$ ^rVa EH$g‘mZ {dÚwV²-joÌ {dÚ‘mZ h¡ & 
(C) Bg n¥îR> Ho$ ^rVa EH$ {~ÝXþ go Xÿgao {~ÝXþ VH$ {dÚwV² {d^d {dM[aV H$aVm h¡ & 
(D) n¥îR> Ho$ ^rVa Amdoe CnpñWV h¡ & 
2. Xÿar L Ho$ n¥WH$Z VWm + q Am¡a – q Amdoem| go ~Zm H$moB© {dÚwV² {ÛY«wd {H$gr EH$g‘mZ  
{dÚwV²-joÌ 
?
E ‘| ñWm¶r gmå¶mdñWm ‘| h¡ & Bg {ÛY«wd H$s pñWa-d¡ÚwV pñW{VO D$Om© h¡  1 
(A) qLE 
(B) eyݶ 
(C) – qLE 
(D) – 2 qLE 
3. H$moB© nmoQ>¡pÝe¶mo‘rQ>a {H$gr gob H$m {d.dm. ~b (emf)  ‘mn gH$Vm h¡ ³¶m|{H$  1 
(A) nmoQ>¡pÝe¶mo‘rQ>a H$s gwJ«m{hVm A{YH$ hmoVr h¡ & 
(B) g§VwbZ Ho$ g‘¶ gob go H$moB© Ymam Zht br OmVr h¡ & 
(C) g§VwbZ Ho$ g‘¶ nmoQ>¡pÝe¶mo‘rQ>a Vma go H$moB© Ymam àdm{hV Zht hmoVr h¡ & 
(D) gob Ho$ AmÝV[aH$ à{VamoY H$s Cnojm H$a Xr OmVr h¡ & 
4. {H$gr ~¡Q>ar Ho$ {gam| go 4 ? Am¡a 6 ? Ho$ Xmo à{VamoYH$m| R
1
 Am¡a R
2
 H$mo nmíd© ‘| g§¶mo{OV 
{H$¶m J¶m h¡ & BZ XmoZm| à{VamoYH$m| ‘| e{³V j¶ H$m AZwnmV P
1
 : P
2
 hmoJm  1 
(A) 4 : 9 
(B) 3 : 2 
(C) 9 : 4 
(D) 2 : 3 
Page 5


 
 .55/1/1 1 P.T.O. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 23 h¢ & 
(I) Please check that this question 
paper contains 23 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) Code number given on the right 
hand side of the question paper 
should be written on the title page of 
the answer-book by the candidate. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>37 àíZ h¢ & 
(III) Please check that this question 
paper contains 37 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 15 minute time has been allotted to 
read this question paper. The 
question paper  will  be  distributed 
at 10.15 a.m. From 10.15 a.m. to 
10.30 a.m., the students will read the 
question paper only and will not 
write any answer on the  
answer-book during this period. 
 
^m¡{VH$ {dkmZ (g¡ÕmpÝVH$) 
PHYSICS (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
55/1/1
 
 
 .55/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE : 
(i) `h àíZ-nÌ Mma IÊS>m| _§| {d^m{OV {H$`m J`m h¡ – H$, I, J Am¡a K &  
(ii) Bg àíZ-nÌ _| 37 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ &  
(iii) IÊS> H$  – àíZ g§»`m 1 go 20 VH$ A{V bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m  
h¡ & 
(iv) IÊS> I – àíZ g§»`m 21 go 27 VH$ bKw-CÎmar` àíZ h¢, àË`oH$ àíZ 2 A§H$m| H$m h¡ & 
(v) IÊS> J – àíZ g§»`m 28 go 34 VH$ XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K – àíZ g§»`m 35 go 37 VH$ ^r XrK©-CÎmar` àH$ma Ho$ àíZ h¢, àË`oH$ àíZ  
5 A§H$m| H$m h¡ & 
(vii) àíZ-nÌ _| H$moB© g_J« {dH$ën Zht h¡ & VWm{n, EH$-EH$ A§H$ Ho$ Xmo àíZm| _|, Xmo-Xmo A§H$m| 
dmbo Xmo àíZm| _§o, VrZ-VrZ A§H$m| dmbo EH$ àíZ _§o VWm nm±M-nm±M A§H$m| dmbo$ VrZm| àíZm| 
_§o Am§V[aH$ {dH$ën {X`m J`m h¡ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m CÎma Xr{OE & 
(viii) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
(ix) Ho$ëHw$boQ>am| AWdm bm°J Q>o~bm| Ho$ à`moJ H$s AZw_{V Zht h¡ & 
(x) Ohm± Amdí`H$ hmo, Amn {ZåZ{b{IV ^m¡{VH$ {Z`Vm§H$m| Ho$ _mZm| H$m Cn`moJ H$a gH$Vo h¢ : 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
 
 
0
4
1
? ?
 = 9 ? 10
9
 N m
2
 C
–2 
 BboŠQ´>m°Z H$m Ðì`_mZ (m
e
) = 9
.
1 ? 10
–31
 kg 
 Ý`yQ´>m°Z H$m Ðì`_mZ = 1
.
675 ? 10
–27
 kg 
 àmoQ>m°Z H$m Ðì`_mZ = 1
.
673 ? 10
–27
 kg 
 AmdmoJmÐmo g§»`m = 6
.
023 ? 10
23
 à{V J«m_ _mob 
 ~moëQ²>µO_mZ {Z`Vm§H$ = 1
.
38 ? 10
–23
 JK
–1 
 
 .55/1/1 3 P.T.O. 
General Instructions : 
Read the following instructions very carefully and strictly follow them : 
(i) This question paper comprises four Sections – A, B, C and D.  
(ii) There are 37 questions in the question paper. All questions are 
compulsory. 
(iii) Section A – Questions no. 1 to 20 are very short answer type questions, 
carrying one mark each. 
(iv) Section B – Questions no. 21 to 27 are short answer type questions, 
carrying two marks each. 
(v) Section C – Questions no. 28 to 34 are long answer type questions, 
carrying three marks each. 
(vi) Section D – Questions no. 35 to 37 are also long answer type questions, 
carrying five marks each. 
(vii) There is no overall choice in the question paper. However, an internal 
choice has been provided in 2 questions of 1 mark, 2 questions of  
2 marks, 1 question of three marks and all the 3 questions of five marks. 
You have to attempt only one of the choices in such questions. 
(viii) In addition to this, separate instructions are given with each section and 
question, wherever necessary. 
(ix) Use of calculators and log tables is not permitted.  
(x) You may use the following values of physical constants wherever 
necessary. 
 c = 3 ? 10
8
 m/s 
 h = 6
.
63 ? 10
–34
 Js 
 e = 1
.
6 ? 10
–19
 C 
 ?
0
 = 4 ? ? 10
–7
 T m A
–1 
 ?
0
 = 8
.
854 ? 10
–12
 C
2 
N
–1 
m
–2
   
 
0
4
1
? ?
= 9 ? 10
9
 N m
2
 C
–2 
 Mass of electron (m
e
) = 9
.
1 ? 10
–31
 kg 
 Mass of neutron = 1
.
675 ? 10
–27
 kg 
 Mass of proton = 1
.
673 ? 10
–27
 kg 
 Avogadro’s number = 6
.
023 ? 10
23
 per gram mole 
 Boltzmann constant = 1
.
38 ? 10
–23
 JK
–1
 
 
 .55/1/1 4 
IÊS> H$ 
ZmoQ> : ZrMo {XE JE àË`oH$ àíZ _| g~go A{YH$ Cn`wº$ {dH$ën Mw{ZE : 
1. ¶{X {H$gr ~ÝX n¥îR> go JwµOaZo dmbm ZoQ> {dÚwV² âb³g eyݶ h¡, Vmo Bggo ¶h {ZîH$f© 
{ZH$mbm Om gH$Vm h¡ {H$  1 
(A) Bg n¥îR> go H$moB© ZoQ> Amdoe n[a~Õ Zht h¡ & 
(B) Bg n¥îR> Ho$ ^rVa EH$g‘mZ {dÚwV²-joÌ {dÚ‘mZ h¡ & 
(C) Bg n¥îR> Ho$ ^rVa EH$ {~ÝXþ go Xÿgao {~ÝXþ VH$ {dÚwV² {d^d {dM[aV H$aVm h¡ & 
(D) n¥îR> Ho$ ^rVa Amdoe CnpñWV h¡ & 
2. Xÿar L Ho$ n¥WH$Z VWm + q Am¡a – q Amdoem| go ~Zm H$moB© {dÚwV² {ÛY«wd {H$gr EH$g‘mZ  
{dÚwV²-joÌ 
?
E ‘| ñWm¶r gmå¶mdñWm ‘| h¡ & Bg {ÛY«wd H$s pñWa-d¡ÚwV pñW{VO D$Om© h¡  1 
(A) qLE 
(B) eyݶ 
(C) – qLE 
(D) – 2 qLE 
3. H$moB© nmoQ>¡pÝe¶mo‘rQ>a {H$gr gob H$m {d.dm. ~b (emf)  ‘mn gH$Vm h¡ ³¶m|{H$  1 
(A) nmoQ>¡pÝe¶mo‘rQ>a H$s gwJ«m{hVm A{YH$ hmoVr h¡ & 
(B) g§VwbZ Ho$ g‘¶ gob go H$moB© Ymam Zht br OmVr h¡ & 
(C) g§VwbZ Ho$ g‘¶ nmoQ>¡pÝe¶mo‘rQ>a Vma go H$moB© Ymam àdm{hV Zht hmoVr h¡ & 
(D) gob Ho$ AmÝV[aH$ à{VamoY H$s Cnojm H$a Xr OmVr h¡ & 
4. {H$gr ~¡Q>ar Ho$ {gam| go 4 ? Am¡a 6 ? Ho$ Xmo à{VamoYH$m| R
1
 Am¡a R
2
 H$mo nmíd© ‘| g§¶mo{OV 
{H$¶m J¶m h¡ & BZ XmoZm| à{VamoYH$m| ‘| e{³V j¶ H$m AZwnmV P
1
 : P
2
 hmoJm  1 
(A) 4 : 9 
(B) 3 : 2 
(C) 9 : 4 
(D) 2 : 3 
 
 .55/1/1 5 P.T.O. 
SECTION A 
Note :  Select the most appropriate option from those given below each  
question : 
1. If the net electric flux through a closed surface is zero, then we can infer 1 
(A) no net charge is enclosed by the surface. 
(B) uniform electric field exists within the surface. 
(C) electric potential varies from point to point inside the surface. 
(D) charge is present inside the surface. 
2. An electric dipole consisting of charges + q and – q separated by a 
distance L is in stable equilibrium in a uniform electric field 
?
E . The 
electrostatic potential energy of the dipole is 1 
(A) qLE 
(B) zero 
(C) – qLE 
(D) – 2 qEL 
3. A potentiometer can measure emf of a cell because 1 
(A) the sensitivity of potentiometer is large. 
(B) no current is drawn from the cell at balance. 
(C) no current flows in the wire of potentiometer at balance.  
(D) internal resistance of cell is neglected. 
4. Two resistors R
1
 and R
2
 of 4 ? and 6 ? are connected in parallel across a 
battery. The ratio of power dissipated in them, P
1
 : P
2
 will be  1 
(A) 4 : 9 
(B) 3 : 2 
(C) 9 : 4 
(D) 2 : 3