PYQ Vault

Day 47: MH HSC Class 12 Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Magnetic Fields due to Electric Current. Asked once: Feb 2025 (same type asked 2 times)

    Answer the following questions :
    Q. 2(iii)
    What is the work done by an external uniform magnetic field perpendicular to the velocity of a moving charge?

  2. Question 2

    Mechanical Properties of Fluids. Asked once: Mar 2022 (same type asked 2 times)

    Q. 12
    Eight droplets of water each of radius 0.2 mm coalesce into a single drop. Find the decrease in the surface area.

  3. Question 3

    Oscillations. Asked once: Mar 2019 (same type asked 2 times)

    Q. 11
    The length of the second's pendulum in a clock is increased to 4 times its initial length. Calculate the number of oscillations completed by the new pendulum in one minute.

  4. Question 4

    Rotational Dynamics. Asked once: Feb 2025 (same type asked 2 times)

    Q. 1(viii)
    The power rating of a ceiling fan rotating with a constant torque of 2 Nm with an angular speed of 2π2\pi rad/s will be _____.

    Tap an option to check your answer.

  5. Question 5

    Electrostatics. Asked once: Feb 2025 (same type asked 2 times)

    Q. 31
    State any four uses of Van de Graaff generator. In a parallel plate air capacitor, intensity of electric field is changing at the rate of 2×10112 \times 10^{11} V/ms. If area of each plate is 20 cm220\ \text{cm}^{2}, calculate the displacement current.