JEE Mains 2026 2 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• NumericeasyWave OpticsDiffraction of Light

  In a single-slit diffraction experiment, light of wavelength 628 nm falls on a slit of width 0.2 mm. If the angular width of the central maximum is α×10⁻² degrees, find α to the nearest integer.

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

  The quantity (1 / 2)ε₀E² represents the energy density of an electric field, where ε₀ is the permittivity of free space and E is the electric-field magnitude. If its dimensional formula is written as MᵃLᵇTᶜ, what is the value of 2a-b+c?

  Options

  • Option A

    0

  • Option B

    1

  • Option C

    -1

  • Option D

    2

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• MCQmediumElectrostaticElectric Dipole & Dipole Moment

  Two short electric dipoles A and B are centred at the same point O with mutually perpendicular axes. Dipole A has moment p₁ along the horizontal axis, while dipole B has moment p₂ along the vertical axis. A point x lies on the axial line of dipole A and on the equatorial line of dipole B. The resultant electric field at x makes an angle of 60° with the horizontal line Ox. What is p₂ /p₁?

  

  Options

  • Option A

    √3 ÷ 2

  • Option B

    2√3

  • Option C

    1 ÷ √3

  • Option D

    √3

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• MCQmediumCapacitorCapacitors with Dielectrics

  A parallel-plate air capacitor has capacitance C. A dielectric slab of dielectric constant K = 5 is inserted so that it fills half of the plate separation over the full plate area, while the remaining half of the separation contains air. What is the percentage increase in capacitance?

  

  Options

  • Option A

    33.34%

  • Option B

    66.67%

  • Option C

    200%

  • Option D

    400%

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• MCQeasyWave MotionWave Motion and General Equation of Travelling Waves

  A plane progressive wave is described by y = 5 cos{π[200t-(x / 150)]}, where x and y are measured in centimetres and t in seconds. What is the speed of the wave in m·s⁻¹?

  Options

  • Option A

    120

  • Option B

    150

  • Option C

    200

  • Option D

    300

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• MCQeasyThermodynamicsFirst Law of Thermodynamics and Its Applications

  Heat is supplied to a diatomic ideal gas at constant pressure. Assuming the usual active translational and rotational degrees of freedom, what is the ratio ΔQ:ΔU:W for the process?

  Options

  • Option A

    2:3:5

  • Option B

    5:3:2

  • Option C

    2:5:7

  • Option D

    7:5:2

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

  For a certain metal, monochromatic light of wavelength λ produces a stopping potential 3V₀. When the same metal is illuminated by light of wavelength 2λ, the stopping potential is V₀. If the threshold wavelength is αλ, what is α?

  Options

  • Option A

    1

  • Option B

    4

  • Option C

    2

  • Option D

    3

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

  Two identical long current-carrying wires are bent into the two shapes shown in the figure. The semicircular arcs in both cases have radius r and carry the same current I. If the magnetic-field magnitudes at the centres P and Q are B₁ and B₂, respectively, what is B₁ / B₂?

  

  Options

  • Option A

    (2+π) / (1+π)

  • Option B

    (1+π) / (1-π)

  • Option C

    (2+π) / (1-π)

  • Option D

    (1+π) /(2-π)

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• MCQeasyCircular MotionKinematics of Circular Motion

  The angular position of a particle moving in a circular path is θ = (5t⁴ /40)-(t³ /3), where θ is in radians and t is in seconds. What is its angular acceleration at t = 10 s?

  Options

  • Option A

    150 rad·s⁻²

  • Option B

    120 rad·s⁻²

  • Option C

    130 rad·s⁻²

  • Option D

    170 rad·s⁻²

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• MCQmediumKinematics Part-1 (one dimension)Acceleration and Avg acceleration

  A particle moves in a steady velocity field described by v = -xî+2yĵ-zk̂, where x, y and z are the instantaneous coordinates of the particle. What is the magnitude of the particle's acceleration at the point (1, 2, 4)?

  Options

  • Option A

    √6 m·s⁻²

  • Option B

    9 m·s⁻²

  • Option C

    √33 m·s⁻²

  • Option D

    0

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