Physics · JEE Main

JEE Main 2025 · 3 Apr 2025 Shift 1

2025100 marks25 questions

14 of its 25 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.

Sit this paper against the clock, marked by its official answers, or get a new paper like it. Sign in first; practising is part of Pro.

Source: JEE (Main) 2025, Paper 1 (B.E./B.Tech), 3 Apr 2025 Shift 1, Physics, published by NTA. The official PDF

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14 questions

Q26Section A4 marks
$A person measures mass of 3 different particles as 435.42 g, 226.3 g and 0.125 g. According to the rules for arithmetic operations with significant figures, the addition of the masses of 3 particles will be.$
1. A $661.845 g$
2. B $662 g$
3. C $661.84 g$
4. D $661.8 g$
Q28Section A4 marks
$A particle is released from height S above the surface of the earth. At certain height its kinetic energy is three times its potential energy. The height from the surface of the earth and the speed of the particle at that instant are respectively.$
1. A $S/4, 3gS/2$
2. B $S/4, \sqrt(3gS/2)$
3. C $S/2, \sqrt(3gS/2)$
4. D $S/2, 3gS/2$
Q32Section A4 marks
$Consider a completely full cylindrical water tank of height 1.6 m and of cross-sectional area 0.5 m². It has a small hole in its side at a height 90 cm from the bottom. Assume, the cross-sectional area of the hole to be negligibly small as compared to that of the water tank. If a load 50 kg is applied at the top surface of the water in the tank then the velocity of the water coming out at the instant when the hole is opened is: (g = 10 m/s²)$
1. A $2 m/s$
2. B $3 m/s$
3. C $4 m/s$
4. D $5 m/s$
Q33Section A4 marks
$During the melting of a slab of ice at 273 K at atmospheric pressure:$
1. A $Positive work is done on the ice-water system by the atmosphere.$
2. B $Positive work is done by the ice-water system on the atmosphere.$
3. C $Internal energy of ice-water system remains unchanged.$
4. D $Internal energy of the ice-water system decreases.$
Q34Section A4 marks
$A gas is kept in a container having walls which are thermally non-conducting. Initially the gas has a volume of 800 cm³ and temperature 27°C. The change in temperature when the gas is adiabatically compressed to 200 cm³ is: (Take γ = 1.5; γ is the ratio of specific heats at constant pressure and at constant volume)$
1. A $600 K$
2. B $300 K$
3. C $327 K$
4. D $522 K$
Q37Section A4 marks
$A wire of length 25 m and cross-sectional area 5 mm² having resistivity of 2 \times 10⁻⁶ Ω m is bent into a complete circle. The resistance between diametrically opposite points will be$
1. A $25 Ω$
2. B $50 Ω$
3. C $100 Ω$
4. D $12.5 Ω$
Q39Section A4 marks
$The electrostatic potential on the surface of uniformly charged spherical shell of radius R = 10 cm is 120 V. The potential at the centre of shell, at a distance r = 5 cm from centre, and at a distance r = 15 cm from the centre of the shell respectively, are:$
1. A $40V, 40V, 80V$
2. B $0V, 120V, 40V$
3. C $120V, 120V, 80V$
4. D $0V, 0V, 80V$
Q40Section A4 marks
$The radiation pressure exerted by a 450 W light source on a perfectly reflecting surface placed at 2m away from it, is$
1. A $3 \times 10⁻⁸ Pascals$
2. B $6 \times 10⁻⁸ Pascals$
3. C $1.5 \times 10⁻⁸ Pascals$
4. D $0$

JEE Main 2025 · 3 Apr 2025 Shift 1

2025100 marks25 questions

14 of its 25 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.

Sit this paper against the clock, marked by its official answers, or get a new paper like it. Sign in first; practising is part of Pro.

Source: JEE (Main) 2025, Paper 1 (B.E./B.Tech), 3 Apr 2025 Shift 1, Physics, published by NTA. The official PDF