JEE Mains 2025 3 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• MCQmediumThermodyanmicsthermodynmic process and work done

  A gas is enclosed in a thermally insulating container. Initially its volume is 800 cm³ and temperature is 27°C. It is adiabatically compressed to 200 cm³. Take γ = 1.5. The change in temperature is:

  Options

  • Option A

    327 K

  • Option B

    300 K

  • Option C

    600 K

  • Option D

    522 K

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• NumericeasyWave Opticsinterferece of light and huygen principle

  Two coherent monochromatic light beams of intensities 4I and 9I are superimposed. If the difference between maximum and minimum intensities in the interference pattern is xI, find x.

  Your answer

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQmediumCurrent electricityequivalent resistance

  A wire of length 25 m and cross-sectional area 5 mm² has resistivity 2×10⁻⁶ Ω m. It is bent into a complete circle. The resistance between diametrically opposite points is:

  Options

  • Option A

    2.5 Ω

  • Option B

    50 Ω

  • Option C

    100 Ω

  • Option D

    25 Ω

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQeasyElectrostaticspotential energy and electric potential

  A uniformly charged spherical shell of radius 10 cm has electrostatic potential 120 V at its surface. The potentials at the centre, at r = 5 cm, and at r = 15 cm respectively are:

  Options

  • Option A

    0 V, 0 V, 80 V

  • Option B

    120 V, 120 V, 80 V

  • Option C

    0 V, 120 V, 40 V

  • Option D

    40 V, 40 V, 80 V

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• IntegermediumGravitationlaw of gravitation ,gravitational field intensity ,gravitational potential and potential energy

  Three identical spheres of mass m are placed at the vertices of an equilateral triangle of side a. Starting from rest, they interact only through mutual gravitation and collide after 4 s. If the side is changed to 2a and each mass is changed to 2m, after how many seconds will they collide?

  Your answer

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQmediumPhotoelectric effect and dual nature of matterquestion based on photoelectric effect

  A 450 W isotropic light source illuminates a perfectly reflecting surface placed 2 m away. The radiation pressure on the surface is:

  Options

  • Option A

    1.5×10⁻⁸ Pa

  • Option B

    6×10⁻⁸ Pa

  • Option C

    0

  • Option D

    3×10⁻⁸ Pa

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQeasyUnit dimension and errorDimension and its application

  Match List-I with List-II. List-I: (A) Gravitational constant, (B) Gravitational potential energy, (C) Gravitational potential, (D) Acceleration due to gravity. List-II: (I) [LT⁻²], (II) [L²T⁻²], (III) [ML²T⁻²], (IV) [M⁻¹L³T⁻²]. Choose the correct match.

  Options

  • Option A

    A–III, B–II, C–I, D–IV

  • Option B

    A–I, B–III, C–IV, D–II

  • Option C

    A–IV, B–III, C–II, D–I

  • Option D

    A–II, B–IV, C–III, D–I

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQeasysemiconductorlogic gate

  Choose the correct logic circuit for the truth table shown in the original figure, where the output Y is 0 for inputs 00 and 01, and 1 for inputs 10 and 11.

  Options

  • Option A

    
  • Option B

    
  • Option C

    
  • Option D

    

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQmediumCapacitorcapacitor with dielectric

  A parallel-plate capacitor is half-filled with dielectric constants ε₁ and ε₂ in two different configurations shown in the original figure. In configuration 1 the two dielectric layers divide the plate separation equally; in configuration 2 they divide the plate area equally. If the corresponding capacitances are C₁ and C₂, then C₁/C₂ is:

  

  Options

  • Option A

    4ε₁ε₂/(ε₁+ε₂)²

  • Option B

    ε₀(ε₁+ε₂)/2

  • Option C

    ε₁ε₂²/(ε₁+ε₂)²

  • Option D

    ε₁ε₂/(ε₁+ε₂)

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →
• MCQeasyUnit dimension and errorsignificant number

  A person measures three masses as 435.42 g, 226.3 g and 0.125 g. According to the rules of significant figures, their sum should be reported as:

  Options

  • Option A

    661.845 g

  • Option B

    661.84 g

  • Option C

    661.8 g

  • Option D

    662 g

  Check answerShow answer

  JEE Mains 2025 3 April Morning Shift

  Open question & full solution →