JEE Mains 2025 7 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• IntegerdifficultAC Circuitsparallel combination of ac circuit

  In the AC circuit shown in the original figure, R = 100 kΩ and C = 100 pF. The phase difference between $V_in$ and ($V_B-V_A)$ is 90°. The input angular frequency is 10ˣ rad/s. Find x.

  

  Your answer

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQmediumThermodynamicsthermodynmic process and work done

  Match List-I with List-II. List-I: (A) Triatomic rigid gas, (B) Diatomic non-rigid gas, (C) Monoatomic gas, (D) Diatomic rigid gas. List-II: (I) Cp/Cv = 5/3, (II) Cp/Cv = 7/5, (III) Cp/Cv = 4/3, (IV) Cp/Cv = 9/7. Choose the correct match.

  Options

  • Option A

    A–III, B–IV, C–I, D–II

  • Option B

    A–III, B–II, C–IV, D–I

  • Option C

    A–II, B–IV, C–I, D–III

  • Option D

    A–IV, B–II, C–III, D–I

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQmediumWork , Power and EnergyPower

  An object of mass 1000 g experiences a time-dependent force F = (2t, 3t²) N. Assuming zero initial velocity, the instantaneous power generated by the force at time t is:

  Options

  • Option A

    (2t²+3t³) W

  • Option B

    (2t²+18t³) W

  • Option C

    (3t³+5t⁵) W

  • Option D

    (2t³+3t⁵) W

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQmediumCenter of maas , Momentum and Collisioncenter of mass and question based on it

  A uniform rod of total length 5L is bent at right angles so that one arm has length 2L along +x and the other has length 3L along +y, as shown in the original figure. For L = 10 cm, the position vector of the centre of mass from the bend is:

  

  Options

  • Option A

    2i + 3j cm

  • Option B

    3i + 7j cm

  • Option C

    5i + 8j cm

  • Option D

    4i + 9j cm

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQmediumGeometrical opticslens and combination lens,silvered lens

  Two thin convex lenses of focal lengths 30 cm and 10 cm are placed coaxially 10 cm apart. The power of the combination is:

  Options

  • Option A

    5 D

  • Option B

    1 D

  • Option C

    20 D

  • Option D

    10 D

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQmediumAC Circuitsavg value and rms value of ac

  An alternating current is represented by i = 5√2 + 10cos(650πt + π/6) ampere. The RMS value of the current is:

  Options

  • Option A

    50 A

  • Option B

    100 A

  • Option C

    10 A

  • Option D

    5√2 A

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQeasyWave Opticspolarisation

  Two plane-polarized light waves combine at a point. Their electric-field components are E₁ = E₀ sinωt and E₂ = E₀ sin(ωt + π/3). The amplitude of the resultant wave is:

  Options

  • Option A

    0.9E₀

  • Option B

    E₀

  • Option C

    1.7E₀

  • Option D

    3.4E₀

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQeasysemiconductorapplication of diode and zener breakdown

  In the Zener-diode circuit shown in the original figure, the supply is 12 V, the series resistor is 100 Ω, the load branch contains 400 Ω and the Zener breakdown voltage is 4 V. The ammeter reading is:

  

  Options

  • Option A

    24 mA

  • Option B

    80 mA

  • Option C

    10 mA

  • Option D

    60 mA

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• IntegermediumGeometrical opticsapperant depth and shift due to slab

  A container has a liquid of refractive index 1.2 up to height 60 cm. A second immiscible liquid of refractive index 1.6 is added above it to height H. When viewed normally from above, the apparent upward shift of the bottom is 40 cm. Find H in cm.

  Your answer

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →
• MCQeasyNewtons law of motion and Frictionfriction and single block problem

  A cubic block slides down a 60° rough incline with acceleration g/2. The coefficient of kinetic friction is:

  Options

  • Option A

    √3-1

  • Option B

    √3/2

  • Option C

    √2/3

  • Option D

    1-√3/2

  Check answerShow answer

  JEE Mains 2025 7 April Morning Shift

  Open question & full solution →