PYQ Vault

Day 40: MH HSC Class 12 Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. Asked once: Feb 2025 (same type asked 3 times)

    Q. 30
    State Einstein's photoelectric equation and mention physical significance of each term involved in it. The wavelength of incident light is 4000Å. Calculate the energy of incident photon.

  2. Question 2

    Electromagnetic Induction. Asked once: Jul 2024 (same type asked 3 times)

    Q. 23
    A search coil having 2000 turns with area 1.5 cm21.5\ \text{cm}^{2} is placed in a magnetic field of 0.6T. The coil is moved rapidly out of the field in a time of 0.2 second. Calculate the induced emf across the search coil.

  3. Question 3

    Kinetic Theory of Gases and Radiation. Asked once: Jul 2024 (same type asked 3 times)

    Q. 3
    Show that average energy per molecule is directly proportional to the absolute temperature 'T' of the gas.

  4. Question 4

    Mechanical Properties of Fluids. Asked once: Jul 2024 (same type asked 3 times)

    Q. 22
    A spherical drop of oil falls at a constant speed of 9.8 cm/s in steady air. Calculate the radius of the drop. The density of oil is 0.9013 g/cm30.9013\ \text{g/cm}^{3}, density of air is 0.0013 g/cm30.0013\ \text{g/cm}^{3} and the coefficient of viscosity of air is 1.8×10−41.8 \times 10^{-4} poise.

  5. Question 5

    Thermodynamics. Asked once: Mar 2022 (same type asked 3 times)

    Q. 5
    What is a thermodynamic process? Give any two types of it.