10 April 2023 physics questions with solutions

Showing 1–10 of 58 questions

• MCQeasyCenter of maas , Momentum and CollisionCollisions: Elastic & Inelastic

  A particle of mass m moving with velocity v collides with a stationary particle of mass 2m. After collision they stick together. Their common velocity is:

  Options

  • Option A

    v/2

  • Option B

    v/3

  • Option C

    v/4

  • Option D

    v

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  JEE Mains10 April 2023Shift 1Morning Shift

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• IntegermediumCurrent electricityElectric Current, Drift Velocity & Resistance

  A rectangular parallelepiped has dimensions 1 cm × 1 cm × 100 cm. Its resistivity is 3 × 10⁻⁷ Ω m. The resistance between the two opposite rectangular faces of area 1 cm × 100 cm is ______ × 10⁻⁷ Ω.

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• IntegermediumElectrostaticConductors & Electrostatic Properties

  Three concentric spherical metallic shells X, Y and Z of radii a, b and c (a < b < c) have surface charge densities +σ, -σ and +σ respectively. Shells X and Z are at the same potential. If a = 2 cm and b = 3 cm, find c in cm.

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• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  Given below are two statements: Statement I: Rotation of the Earth affects the value of acceleration due to gravity g.

  Statement II: The effect of Earth's rotation on g is minimum at the equator and maximum at the poles. Choose the correct answer.

  Options

  • Option A

    Both Statement I and Statement II are true

  • Option B

    Both Statement I and Statement II are false

  • Option C

    Statement I is false but Statement II is true

  • Option D

    Statement I is true but Statement II is false

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• MCQeasyThermodynamicsKinetic Theory of Gases and Molecular Properties

  A gas mixture contains 2 moles of O₂ and 4 moles of Ne at temperature T. Neglect vibrational modes. The total internal energy is:

  Options

  • Option A

    4RT

  • Option B

    11RT

  • Option C

    8RT

  • Option D

    16RT

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• MCQeasyElectromagnetic waveDisplacement Current, Maxwell's Equations and Properties of Electromagnetic Waves

  The magnetic-field amplitude of an electromagnetic wave is B₀ = 6.0 × 10⁻⁷ T. The electric-field amplitude is:

  Options

  • Option A

    2 × 10¹⁵ V m⁻¹

  • Option B

    2 × 10¹⁴ V m⁻¹

  • Option C

    6.0 × 10⁻⁷ V m⁻¹

  • Option D

    180 V m⁻¹

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• MCQeasyFluid MechanicsPascal's Law, Buoyant Force and Archimedes' Principle

  Given below are two statements:

  Statement I: Pressure in a reservoir of water is the same at all points at the same horizontal level.

  Statement II: Pressure applied to enclosed water is transmitted equally in all directions. Choose the correct answer.

  Options

  • Option A

    Both Statement I and Statement II are false

  • Option B

    Both Statement I and Statement II are true

  • Option C

    Statement I is true but Statement II is false

  • Option D

    Statement I is false but Statement II is true

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• MCQeasyPhotoelectric effect and dual natureDual Nature of Matter & de Broglie Wavelength

  The de Broglie wavelength of a molecule in a gas at 300 K is λ₁. If the temperature is increased to 600 K, the de Broglie wavelength becomes:

  Options

  • Option A

    2λ₁

  • Option B

    λ₁/√2

  • Option C

    √2λ₁

  • Option D

    λ₁/2

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• MCQmediumsemiconductorP–N Junction Diode & Forward–Reverse Bias

  In the diode circuit shown, each forward-biased diode has resistance 25 Ω. Which relation between the labelled currents is correct?

  

  Options

  • Option A

    I₁/I₂ = 2

  • Option B

    I₂/I₃ = 1

  • Option C

    I₃/I₄ = 1

  • Option D

    I₁/I₂ = 1

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• MCQeasyKinematics Part-1 (one dimension)Distance,Displacement ,Avg speed and Avg velocity

  A person travels distance x with speed v₁ and then another equal distance x with speed v₂ in the same direction. If the average velocity is v, the correct relation is:

  Options

  • Option A

    v = v₁ + v₂

  • Option B

    1/v = 1/v₁ + 1/v₂

  • Option C

    2/v = 1/v₁ + 1/v₂

  • Option D

    v = (v₁ + v₂)/2

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