JEE Mains 2026 5 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• 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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• MCQmediumThermodyanmicsfirst law of thermodynamics

  Consider the following statements about thermodynamics. A. The zeroth law of thermodynamics provides the concept of temperature. B. The first law of thermodynamics introduces the concept of internal energy. C. In an isothermal expansion of an ideal gas, the heat supplied is not equal to the work done by the gas. D. The product of an intensive variable and an extensive variable is extensive. E. The ratio of any extensive variable to mass is an extensive variable. Which combination contains only correct statements?

  Options

  • Option A

    C, D and E only

  • Option B

    A, B and C only

  • Option C

    A, B and D only

  • Option D

    B, C and D only

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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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• 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

  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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• A/RmediumThermodyanmicskinetic therory of gaseous

  Choose the correct option for the following Assertion (A) and Reason (R).

  Assertion

  For n moles of an ideal gas, the change in internal energy can be written as ΔU = nCᵥ[$T_{f}$-$T_{i}$] = [nR /(γ-1)][$T_{f}$-$T_{i}$], where γ = Cₚ/Cᵥ.

  Reason

  The relation between the number of degrees of freedom f and γ is γ = 1+2/f.

  Options

  • Option A

    Both A and R are true and R is the correct explanation of A.

  • Option B

    Both A and R are true but R is NOT the correct explanation of A.

  • Option C

    A is true but R is false.

  • Option D

    A is false but R is true.

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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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• IntegereasyProperties of solid and fluidpropertes of solid stress ,strain and modulus of elasticity

  A cube of side 5 cm has modulus of rigidity 10⁵ N·m⁻². A tangential force of 10 N is applied to the upper face while the lower face is fixed. If the resulting lateral displacement of the upper face is N mm, find N.

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• MCQeasyElectromagnetic wavedisplacement current and properties of electromagnetic wave

  A displacement current of 4.0 A is established between the plates of a 6 μF parallel-plate capacitor. If the rate of change of potential difference across the capacitor is α×10⁶ V·s⁻¹, what is the value of α?

  Options

  • Option A

    0.58

  • Option B

    0.67

  • Option C

    0.82

  • Option D

    0.75

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  Three masses are connected by two light strings and a fixed smooth pulley. A 4 kg mass hangs on the left side of the upper string. On the right side of the same string hangs another 4 kg mass, and a 6 kg mass is suspended below it by a second string. Let T₁ be the tension in the upper string and T₂ the tension in the lower string. Taking g = 10 m·s⁻², what is the ratio T₁/T₂?

  

  Options

  • Option A

    5/3

  • Option B

    2/3

  • Option C

    3/5

  • Option D

    2/5

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