JEE Mains 2026 5 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• IntegereasyWave Motiongeneral equation of wave

  A transverse wave on a string is described by y = 3 sin(36t+0.018x+π/4), where x and y are measured in centimetres and t in seconds. Taking π = 3.14, find the least distance between two successive crests in centimetres, to the nearest integer.

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• MCQmediumCurrent electricityCircuit Theory & Kirchhoff’s Laws

  Refer to the circuit shown in the figure. Using the current directions I₁, I₂ and I₃ indicated there, what are the values of the three currents?

  

  Options

  • Option A

    I₁ = 2.5 A, I₂ = 1.875 A, I₃ = 1.875 A

  • Option B

    I₁ = 1.875 A, I₂ = 2.5 A, I₃ = 1.875 A

  • Option C

    I₁ = 1.875 A, I₂ = 1.875 A, I₃ = 2.5 A

  • Option D

    I₁ = 2.5 A, I₂ = 2.5 A, I₃ = 1.875 A

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• MCQeasyUnit dimension and errorvernier callipers and screw gauge

  In a Vernier calipers, when the two jaws are brought into contact, the zero of the Vernier scale lies to the right of the zero of the main scale. The 7th Vernier division coincides with a main-scale mark. If one main-scale division is 1 mm and the Vernier has 10 divisions, what is the zero error of the instrument?

  Options

  • Option A

    0.07 cm negative zero error

  • Option B

    0.7 cm negative zero error

  • Option C

    0.07 cm positive zero error

  • Option D

    0.7 cm positive zero error

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• MCQmediumAC Circuitsseries combination of ac circuit and L-C-R circuit

  An AC source of angular frequency ω is connected across a resistor R and a capacitor C in series. The current is I. The source frequency is then reduced to ω /4 while the rms voltage is kept unchanged, and the current becomes I /3. If $X_{c}$ is the capacitive reactance at the original frequency ω, what is R /$X_{c}$?

  Options

  • Option A

    √(6 /7)

  • Option B

    √(3/5)

  • Option C

    √(7/8)

  • Option D

    √(3 /4)

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• IntegermediumElectromagnetic Inductionself induction and L-R circuit

  In the circuit shown in the figure, inductors L₁, L₂ and L₃ all have the same inductance L. Inductor L₁ is in series with a parallel combination of L₂ and L₃. Neglect mutual inductance. If U(total) is the total magnetic energy stored in the circuit and U(L₂) is the energy stored in inductor L₂, find U(total) /U(L₂).

  

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• MCQmediumPhotoelectric effect and dual nature of matterquestion based on photoelectric effect

  Light of wavelength 331 nm is incident on a metal surface and produces photoelectrons with stopping potential 0.2 V. Taking h = 6.62×10⁻³⁴ J·s, e = 1.6×10⁻¹⁹ C and c = 3×10⁸ m·s⁻¹, the work function of the metal is α×10⁻¹⁹ J. What is α?

  Options

  • Option A

    3.68

  • Option B

    4.68

  • Option C

    5.68

  • Option D

    2.68

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• MCQmediumNewtons law of motion and FrictionPseudo force related problem

  A wedge of mass 10 kg rests on a frictionless horizontal surface. Its smooth inclined face makes an angle of 37° with the horizontal. A 2 kg block is placed at the highest point of the incline and is initially at rest relative to the wedge. At t = 0, a constant horizontal force of 24 N is applied to the wedge toward the right. Taking tan37° = 3/4 and g = 10 m·s⁻², approximately how much time does the block take to slide 8.8 m down the incline relative to the wedge?

  

  Options

  • Option A

    2 s

  • Option B

    4 s

  • Option C

    √2 s

  • Option D

    2√2 s

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• MCQmediumGeometrical opticsprism and thin prism

  A ray of light travels through the material of an equilateral prism with speed 2.12×10⁸ m·s⁻¹. Taking the speed of light in vacuum as 3.0×10⁸ m·s⁻¹, what is the minimum angle of deviation produced by the prism?

  Options

  • Option A

    45°

  • Option B

    30°

  • Option C

    28°

  • Option D

    58°

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• MCQeasyWave Opticsyoung's dubble slit experiments

  In a Young double-slit experiment, the fringe width in air is 2.4 μm. The entire experiment is then carried out in a transparent medium of refractive index 1.2, while the slit separation and screen distance remain unchanged. What is the new fringe width?

  Options

  • Option A

    1.2 μm

  • Option B

    2.0 μm

  • Option C

    2.4 μm

  • Option D

    2.88 μm

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• MCQmediumsemiconductorlogic gate

  Refer to the logic circuit shown in the figure. Which input combination makes both LED-1 and LED-2 glow simultaneously?

  

  Options

  • Option A

    A = 0, B = 1, C = 1

  • Option B

    A = 1, B = 0, C = 0

  • Option C

    A = 1, B = 0, C = 1

  • Option D

    A = 1, B = 1, C = 0

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