PYQ Vault

Day 50: 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 2020 (same type asked 2 times)

    Q. 31
    A circular coil of 300 turns and diameter 14 cm14\text{ cm} carries a current of 15 A15\text{ A}. Calculate the magnitude of the magnetic dipole moment associated with the coil.

  2. Question 2

    Oscillations. Asked once: Mar 2022 (same type asked 2 times)

    Q. 2(v)
    Write the differential equation for angular S.H.M.

  3. Question 3

    Oscillations. Asked once: Feb 2024 (same type asked 2 times)

    Q. 29(ii)
    The displacement of a particle performing simple harmonic motion is 13\dfrac{1}{3}rd of its amplitude. What fraction of total energy will be its kinetic energy?

  4. Question 4

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

    Q. 27
    A wheel of moment of inertia 1 kg m21\text{ kg m}^{2} is rotating at a speed of 30 rad/s. Due to friction on the axis, it comes to rest in 10 minutes. Calculate the average torque of the friction.

  5. Question 5

    Superposition of Waves. Asked once: Mar 2016 (same type asked 2 times)

    Q. 1(vi)
    The fundamental frequency of an air column in a pipe closed at one end is in unison with the third overtone of an open pipe. Calculate the ratio of lengths of their air columns.