JEE Mains 2026 6 April Evening Shift physics questions with solutions

Showing 1–10 of 25 questions

• MCQeasyThermodynamicsThermodynamic Processes, P-V Diagrams and Work Done

  Two moles of an ideal monoatomic gas at temperature T are mixed thermally with six moles of another ideal monoatomic gas at temperature 2T. Assuming no heat is exchanged with the surroundings and both gases have the same molar heat capacity at constant volume, what is the final equilibrium temperature of the mixture?

  Options

  • Option A

    5T/ 2

  • Option B

    5T/4

  • Option C

    7T/ 2

  • Option D

    7T/ 4

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• MCQeasyNuclear physicsNuclear Properties, Mass Defect & Binding Energy

  Two deuterium nuclei ²₁H combine to form one ⁴₂He nucleus. The binding energy per nucleon of ²₁H is 1.1 MeV and that of ⁴₂He is 7.2 MeV. What energy is released in the reaction?

  Options

  • Option A

    6.1 MeV

  • Option B

    24.4 MeV

  • Option C

    26.6 MeV

  • Option D

    5 MeV

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

  An electron is accelerated from rest through a potential difference V₁ and has de Broglie wavelength λ₁. When the accelerating potential is changed to V₂, the associated de Broglie wavelength increases by 50%. If V₁/V₂ = 9/α, find α.

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• IntegermediumCurrent electricityCells, Maximum Power & Heating Effect

  Two cells of emfs 1 V and 2 V and internal resistances 2 Ω and 1 Ω, respectively, are connected in parallel with the same polarity and supply a current of 1 A through an external resistance R. The polarity of the 1 V cell is then reversed while the external resistance remains unchanged. If the new current through R is α ÷ 5 A, find α.

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• MCQeasyElectromagnetic InductionMagnetic Flux,Faraday's Laws of Electromagnetic Induction and Lenz's Law

  A square conducting loop of side 2 cm is placed in a time-varying uniform magnetic field B = 0.4 sin(300t) tesla. The normal to the plane of the loop makes an angle of 60° with the magnetic field. What is the maximum induced emf in the loop?

  Options

  • Option A

    12 mV

  • Option B

    18 mV

  • Option C

    21 mV

  • Option D

    24 mV

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• MCQeasyUnits, Dimensions, Measurements and ErrorsErrors in Measurement and Error Propagation

  The diameter of a sphere is measured with a percentage error of 2%. What is the corresponding percentage error in the calculated volume of the sphere?

  Options

  • Option A

    1%

  • Option B

    2%

  • Option C

    6%

  • Option D

    8%

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

  For an electromagnetic wave propagating through vacuum, k represents the propagation vector, E represents the electric-field vector and ω is the angular frequency. Which expression represents the magnetic-field vector B associated with the wave?

  Options

  • Option A

    (E×k) /ω

  • Option B

    (k×E) /ω

  • Option C

    ω(E×k)

  • Option D

    ω(k×E)

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• NumericmediumCurrent electricityElectrical Instruments: Galvanometer, Ammeter, Voltmeter & Potentiometer

  A moving-coil galvanometer is shunted by a 2 Ω resistance and then gives full-scale deflection when the total current is 500 mA. In a second arrangement, a 470 Ω resistance is connected in series with the galvanometer and full-scale deflection occurs when 10 V is applied. Find the resistance of the galvanometer coil in ohms.

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• MCQmediumFluid MechanicsEquation of Continuity and Bernoulli's Principle

  A cylindrical vessel of radius 40 cm is completely filled with water and has a capacity of 528 dm³. The vessel is placed on a solid block whose height is exactly equal to the vessel height. A small hole is made in the side wall at a point 70 cm below the top water level. What is the horizontal range of the water jet when it first reaches the ground?

  Options

  • Option A

    120√2 cm

  • Option B

    140√2 cm

  • Option C

    140√3 cm

  • Option D

    120√3 cm

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• MCQeasyCapacitorCapacitance & Types of Capacitors

  An isolated conducting sphere of capacitance 100 pF is charged to a potential of 100 V. A second identical uncharged metal sphere is brought into contact with it. After charge redistribution, the two identical spheres are at the same potential. If the magnitude of the decrease in total electrostatic energy is α × 10⁻⁷ J, what is α?

  Options

  • Option A

    5

  • Option B

    5 /2

  • Option C

    7/2

  • Option D

    9/2

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