JEE Mains 2025 7 April Evening Shift physics questions with solutions

Showing 1–10 of 25 questions

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

  An inductor of reactance 100 Ω, a capacitor of reactance 50 Ω and a resistor of resistance 50 Ω are connected in series to a 10 V rms AC source. Find the average power dissipated in watts.

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• MCQmediumGravitationSatellites, Orbital Motion & Kepler’s Laws

  Assertion (A): The radius vector from the Sun to a planet sweeps out equal areas in equal intervals of time, so the planet's areal velocity is constant. Reason (R): In a central-force field, angular momentum is conserved. Choose the correct answer.

  Options

  • Option A

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

  • Option B

    Both A and R are correct but R is not the correct explanation of A

  • Option C

    A is correct but R is false

  • Option D

    A is false but R is correct

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• MCQmediumWave Motionquestion based on string wave

  A wave travelling on a string is y = sin(20πx + 10πt), with x and t in SI units. The minimum distance between two points having the same oscillating speed is:

  Options

  • Option A

    5.0 cm

  • Option B

    20 cm

  • Option C

    10 cm

  • Option D

    2.5 cm

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• MCQmediumsemiconductorlogic gate

  For the logic circuit shown in the original figure, the output Y is zero for which input combination?

  

  Options

  • Option A

    A=1, B=1

  • Option B

    A=0, B=1

  • Option C

    A=1, B=0

  • Option D

    A=0, B=0

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• MCQeasyUnit dimension and errorDimension and its application

  The dimension of √(μ₀/ε₀), where μ₀ is vacuum permeability and ε₀ is vacuum permittivity, is the same as that of:

  Options

  • Option A

    Voltage

  • Option B

    Capacitance

  • Option C

    Inductance

  • Option D

    Resistance

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• MCQeasyThermodynamicsthermodynmic process and work done

  Match List-I with List-II. List-I: (A) Isothermal, (B) Adiabatic, (C) Isobaric, (D) Isochoric. List-II: (I) ΔW = 0, (II) ΔQ = 0, (III) ΔU ≠ 0, (IV) ΔU = 0. Choose the correct match.

  Options

  • Option A

    A–III, B–II, C–I, D–IV

  • Option B

    A–IV, B–I, C–III, D–II

  • Option C

    A–IV, B–II, C–III, D–I

  • Option D

    A–II, B–IV, C–I, D–III

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• MCQmediumGeometrical opticslaw of refraction and total internal reflection

  A transparent block of refractive index 1.25 is surrounded by a medium of refractive index 1.0. A ray is incident on a vertical face as shown in the original figure. The maximum incidence angle θ for which the ray undergoes total internal reflection at the top surface is:

  

  Options

  • Option A

    tan⁻¹(4/3)

  • Option B

    tan⁻¹($\frac{3}{4}$)

  • Option C

    sin⁻¹($\frac{3}{4}$)

  • Option D

    cos⁻¹($\frac{3}{4}$)

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• NumericeasyElectrostaticelectric flux and gauss law

  The electric field is E = (2,4,6)×10³ N/C. The electric flux through a rectangular surface parallel to the x-z plane is 6.0 N·m²/C. Find the area of the surface in cm².

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• MCQeasyCapacitorparallel plate capacitor ,cylindrical capacitor and spherical capacitor

  An electric dipole has charges ±2 μC separated by 0.5 μm. It is placed between capacitor plates separated by 0.5 mm with potential difference 5 V. If the dipole is rotated by 30° from the electric-field direction, the torque magnitude is:

  Options

  • Option A

    5×10⁻⁹ N·m

  • Option B

    5×10⁻³ N·m

  • Option C

    2.5×10⁻¹² N·m

  • Option D

    2.5×10⁻⁹ N·m

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• MCQmediumGeometrical opticsspherical mirror

  A mirror forms an image with magnification 1/4. The distance between the object and image is 40 cm. The focal length of the mirror is:

  Options

  • Option A

    10 cm

  • Option B

    12.7 cm

  • Option C

    10.7 cm

  • Option D

    15 cm

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