PYQ Vault

Day 32: MH HSC Class 12 Physics

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

  1. Question 1

    Rotational Dynamics. This type asked 2 times: Mar 2019, Jul 2024. This one: Jul 2024

    Q. 12
    A torque of magnitude 400 Nm acting on a body of mass 40 kg produces an angular acceleration of 20 rad/s220\ \text{rad/s}^{2}. Calculate the moment of inertia of the body.

  2. Question 2

    Superposition of Waves. This type asked 2 times: Mar 2016, Jul 2024. This one: Jul 2024

    Q. 1(x)
    When an air column in a pipe closed at one end vibrates such that two nodes are formed in it, the frequency of its vibrations is ____.

    Tap an option to check your answer.

  3. Question 3

    Dual Nature of Radiation and Matter. This type asked 2 times: Feb 2023, Feb 2024. This one: Feb 2024

    Answer the following questions :
    Q. 2(vii)
    In a photoelectric experiment, the stopping potential is 1.5V. What is the maximum kinetic energy of a photoelectron?

  4. Question 4

    Electrostatics. This type asked 2 times: Mar 2017, Feb 2024. This one: Feb 2024

    Q. 31
    Derive an expression for energy stored in a charged capacitor. A spherical metal ball of radius 15 cm carries a charge of 2μC2\mu C. Calculate the electric field at a distance of 20 cm from the center of the sphere.

  5. Question 5

    Kinetic Theory of Gases and Radiation. This type asked 2 times: Mar 2022, Feb 2024. This one: Feb 2024

    Q. 25
    Prove the Mayer's relation : Cp−Cv=RJC_p - C_v = \dfrac{R}{J}