JEE Main 2025 January 24 Physics Question Paper (Available): Unofficial answer key PDF download

JEE Main 2025 January 24 Physics question paper along with the unofficial answer key solutions PDF can be checked here for both Shift 1 and 2.

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JEE Main 2025 January 24 Physics Question Paper (Available): Unofficial answer key PDF download

JEE Main 2025 January 24 Physics Question Paper: The JEE Main Physics question paper and answer key solutions for 24 January 2025 can be checked here for both Shift 1 and 2. These answer key resources are unofficial and will focus exclusively on the Physics section. To help candidates analyze their performance, leading educational platforms and coaching institutes release the JEE Main 24 January 2025 Physics question paper along with detailed answer key solutions. By comparing their answers with the provided key, candidates can calculate their approximate scores and gauge their chances of qualifying for the next round. On Day 1 and 2, the difficulty level of the Physics paper was Moderate. 

JEE Main 2025 January 24 Shift 2 Physics Question Paper and Answer Key

Below we have provided JEE Main 24 January 2025 Physics question paper with answer key solutions for Shift 2: 

Q.No.

Questions

Answers

1

A solid sphere and hollow sphere rolls down purely equal distances on same inclined plane (starting from rest) in time t1 t2 then

t1< t2

2

A solid sphere rolls without slipping on a horizontal plane. What is ratio of translation kinetic energy to the rotational kinetic energy of the sphere

5/2

3

If the acceleration due to gravity on the surface of earth is g, then acceleration due to gravity on a planet whose diameter is 1/3 of that of earth nad same mass as that of earth is g=ng where n is=

9g

4

If E, p, m, and c denote the energy, linear momentum, mass, and speed of light , then the equation representing the correct relation could be

E2= p2c2 + m2c2 + m2c4

5

Temperature of a body reduces from 40 degree to 24 degree in 4 minutes in surrounding of 14 degree celsius. What is the temperature of body after further 4 minutes?

56/3 degree Celcius

6

The position of a particle varies with time as r= (5t2t - 5tj) m. The magnitude and direction of velocity at t= 1/2 S is

5√2 m/s, -45 degree with +X axis

7

Which of the following graph correctly represents the relation between Celcius and Fahrenheit.

8

In given thermodynamics process (Circular in nature) find magnitude of work done by the gas in cycle ABCA 

9

Arrange the following in order of decreasing wavelength 
a. Microwave
b. Ultraviolet
c. Infrared
d. X-rays 

a>c>b>d

10.

A particle oscillates along x axis according to law x= x0sin2 (t/2) where x0=1. Variations of kinetic energy (k) with position (x) is given by graph. 

11

For which of the following input, output of the circuit is zero.
(A) x=0 y=0
(B) x=0 y=1
(C) x=1 y=0
(D) x=1 y=1

B,C,D only

12

There is a conical pendulum of mass m and length l making 60 degree with vertical. Then tension in thread it.

2mg

13

There are two identical conducting spheres placed at certain distance I. On of them is carrying charge of 4x 10-8 C and other is neutral. Now both are connected using a conducting wire and force between them is found to be 9 x 10-3 N, then distance is 

2cm

14.

The excess pressure required to decrease the volume of water sample by 0.2% is P x 105 Pa. If the bulk modulus of water is 1.25 x 109 Pa. then value of P is

25

JEE Main 2025 January 24 Physics Shift 1 Question Paper and Answer Key

Below we have provided the JEE Main 24 January 2025 Physics question paper with answer key solutions for Shift 1: 

Q.No.

Questions

Answers

1

If I= IA sincot + IB coscot, then find rms value of current 

Irms  √12A+12B

                 2

2

What is relative shift of focal length of a lens when optical power is increased from 0.1 D to 2.5 D

24/25

3

The electric flux through the shaded area of square plate of side a due to point charge placed at distance of a/2 from it as shown in figure, NQ/48 E0. then N is

5

4.

In a square loop of side length 1/√2 ma current of 5A is flowing. Find magnetic field at its centre in ( μT)

8

5

Satellite A is launched in a circular orbit of radius R. Satellite B is launched in circular orbit of radius 1.03R. The period of B is greater than A by approximately

4.5%

6

An electron jumps from principle quantum state A to C by releasing photon of wavelength 2000 A and from state B to C by releasing a photon of wavelength 6000 A then find the wavelength of photon for transistor from A to B.

3000A

7.

For an ideal mono atomic gas undergoing an isobaric process, the ratio of ΔQ/ΔU is 

5/3

8

An electron of mass m enters in a region of uniform electric field E = -E0k at t=0 with an initial velocity V= V0t. If the de-Brogile wavelength is λ initially, the de-Brogile wavelength  at a time t is 

9

In a process pressure of the gas is directly proportional to temperature then choose the correct option.
A: Process is isochoric 
B: Work done in process is zero.
C: Internal energy increase with increase in temperature 

A, B and C are correct

10.

If the distance two parallel plate of a capacitor is d, A is the area of each plate and E is the electric field, Find the energy stored in capacitor.

1/2 E2 AE0d

11

In YDSE, lights of wavelength 600 nm and 480 nm are used. What is the minimum order of bright fringe of 480 nm coincides with bright fringe of 600 nm.

5

12

A body of mass m is projected with a initial velocity v0 at 45 degree with horizontal. Find its angular momentum at highest point about point of projection.

m v03

4 √2 g

13

A plane convex lens of refractive index 1.5 and radius of curvature of curved surface of 20 cm present in air is having focal length of f1. There is another plane convex lens of refractive index of 1.5 & ROC of 30 cm placed in liquid of RI of 1.2 having focal length of f2 the f1/f2 is 

1/3

14. 

Acceleration of solid cylinder purely rolling  an inclined plane of inclination of  θ

2/3g sin θ

15.

Find the maximum possible velocity for the given angle of banking θ on a curved road of radius r having a coefficient of friction μ

16

In a parallel plate capacitor length and width are 3 cm and 1 cm respectively. Separation between plates is 3μm. By which of the following value capacitance increase by a factor of 10.

A and B

17

In SHM given by equation x= Asincot of time period 2 sec and amplitude 1 cm ratio of Distance/Displacement in first 1.25 sec is

2√2 + 1

18

A wire of resistance 9Ω is bent in form of an equilateral triangle. Find equivalent resistance between two vertices of a triangle.

19

Work done required to break a drop of radius R to 27 drops of equal radius is 10J. Then work done to break drop of radius R in 64 drops of equal radii is XJ, then X is 

15J

20

A particle moves on a straight line under the influence of a force F = α+ βx2, where x is the displacement and β= -12 SI units. If the total work done for a displacement x= 1m is 12J then α is ____ SI units.

16

Also Read | JEE Main 24 Jan 2025 vs 30 Jan 2024 Shift Analysis: Hardest vs Easiest

JEE Main 24 January 2025 Physics Question Paper PDF Download

Aspirants can download the JEE Main 24 Jan 2025 Physics question paper and answer key by CollegeDekho as provided above in PDF format:

JEE Main 24 January 2025 Question Paper: Chemistry and Mathematics

For other subjects across both shifts, check and download JEE Main 24 January 2025 question paper here:

JEE Main 24 January 2025 Physics Question Paper PDFs by Coaching Institutions

For both Shift 1 and Shift 2, JEE Main 24 January 2025 Physics answer key and question paper PDF links have been provided as released by Resonance, Aakash BYJU's, and Vedantu in the below table:

You may also find important |

Subject-wise JEE Mains Marks vs Percentile 2025 |

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