JEE Mains 2025 2 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• IntegermediumProperties of solid and fluidElastic Properties of Solids: Stress, Strain and Elastic Moduli

  A steel wire has Young's modulus 2.0×10¹¹ N m⁻². Its Poisson ratio is 0.2 and the magnitude of transverse strain is 10⁻³. The elastic potential-energy density is ______ ×10⁵ in SI units. Find the numerical value in the blank.

  Your answer

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• MCQeasyWave OpticsHuygens' Principle & Interference of Light

  A light wave has plane wavefronts described by x + y + z = constant. The angle made by the direction of wave propagation with the x-axis is:

  Options

  • Option A

    cos⁻¹(1/√3)

  • Option B

    cos⁻¹(√(2/3))

  • Option C

    cos⁻¹(1/3)

  • Option D

    cos⁻¹(2/3)

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• MCQmediumElectrostaticElectric Field & Superposition Principle

  A small bob of mass 100 mg and charge +10 μC is connected to an insulating string of length 1 m and is brought near an infinitely large non-conducting sheet of charge density σ as shown in the original figure. If the string makes an angle 45° with the sheet at equilibrium, find σ. Given ε₀ = 8.85×10⁻¹² F m⁻¹ and g = 10 m s⁻².

  

  Options

  • Option A

    0.885 nC/m²

  • Option B

    1.77 nC/m²

  • Option C

    17.7 nC/m²

  • Option D

    885 nC/m²

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• MCQeasyRotational MotionMoment of Inertia & Rotational Kinetic Energy

  The moment of inertia of a rod of mass M and length L about an axis through its centre and perpendicular to its length is α. The rod is cut into two equal parts and the two parts are joined symmetrically to form a cross. The moment of inertia of the cross about an axis through its centre and perpendicular to the plane of the cross is:

  Options

  • Option A

    α/2

  • Option B

    α/4

  • Option C

    α/8

  • Option D

    α

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• MCQmediumRotational MotionTorque & Rotational Equilibrium

  A square lamina OABC of side 10 cm is pivoted at O. Forces act on the lamina as shown in the original figure. If the lamina remains stationary, the magnitude of F is:

  

  Options

  • Option A

    10√2 N

  • Option B

    20 N

  • Option C

    10 N

  • Option D

    0

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• MCQmediumGeometrical opticsLenses, Lens Combinations & Silvered Lenses

  A slanted object AB is placed on one side of a convex lens as shown in the original figure. The image is formed on the opposite side. The angle made by the image with the principal axis is:

  

  Options

  • Option A

    +45°

  • Option B

    -45°

  • Option C

    -α/2

  • Option D

    -α

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• MCQmediumPhotoelectric effect and dual naturePhotoelectric Effect & Einstein's Equation

  A monochromatic light of wavelength λ is incident on a metallic plate of work function φ. An electron is emitted normally from point A with maximum kinetic energy and enters a uniform magnetic field B perpendicular to its initial velocity. It follows a circular path and hits the plate again at B. The distance AB is:

  Options

  • Option A

    √[2m(hc/λ - φ)]/(eB)

  • Option B

    √[m(hc/λ - φ)]/(eB)

  • Option C

    √[8m(hc/λ - φ)]/(eB)

  • Option D

    2√[m(hc/λ - φ)]/(eB)

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• MCQmediumGeometrical opticsRefraction at Spherical Surfaces

  A spherical surface separates two media of refractive indices 1 and 1.5 as shown in the original figure. The object is 0.2 m to the left of the surface and the centre of curvature is 0.4 m to the right of the surface. The image is formed at:

  

  Options

  • Option A

    0.24 m right of the spherical surface

  • Option B

    0.4 m left of the spherical surface

  • Option C

    0.4 m right of the spherical surface

  • Option D

    0.24 m left of the spherical surface

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• MCQmediumMagnetic effect of currentBiot-Savart Law and Magnetic Field Due to Straight Wires, Circular Arcs and Loops

  Let B₁ be the magnetic field at the centre of a circular coil of radius R carrying current I, and B₂ the field at an axial distance x from the centre. For x:R = 3:4, the ratio B₂:B₁ is:

  Options

  • Option A

    25:16

  • Option B

    4:5

  • Option C

    64:125

  • Option D

    16:25

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• MCQmediumUnits, Dimensions, Measurements and ErrorsDimensional Analysis and Its Applications

  Match List-I with List-II. List-I: (A) Coefficient of viscosity, (B) Intensity of wave, (C) Pressure gradient, (D) Compressibility. List-II: (I) [M L⁰ T⁻³], (II) [M L⁻² T⁻²], (III) [M⁻¹ L T²], (IV) [M L⁻¹ T⁻¹]. Choose the correct match.

  Options

  • Option A

    A–IV, B–I, C–II, D–III

  • Option B

    A–I, B–IV, C–III, D–II

  • Option C

    A–II, B–III, C–IV, D–I

  • Option D

    A–IV, B–II, C–I, D–III

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