PYQ Vault

Day 18: MH HSC Class 12 Physics

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

  1. Question 1

    Rotational Dynamics. This type asked 4 times: Mar 2017, Feb 2024, Jul 2024, Feb 2025. This one: Feb 2025

    Answer the following questions :
    Q. 2(vi)
    State the formula for angle of banking.

  2. Question 2

    Structure of Atoms and Nuclei. This type asked 4 times: Mar 2017, Mar 2018, Jul 2024, Feb 2025. This one: Mar 2018

    Q. 6(v)
    The electron in the hydrogen atom is moving with a speed of 2.3×106 m/s2.3 \times 10^{6}\text{ m/s} in an orbit of radius 0.53 A˚0.53\text{ Å}. Calculate the period of revolution of electron. (π=3.142\pi = 3.142)

  3. Question 3

    Rotational Dynamics. This type asked 4 times: Mar 2019, Feb 2020, Mar 2022, Feb 2023. This one: Feb 2023

    Q. 31
    Derive expressions for linear velocity at lowest position, mid-way position and the top-most position for a particle revolving in a vertical circle, if it has to just complete circular motion without string slackening at top.

  4. Question 4

    Dual Nature of Radiation and Matter. This type asked 4 times: Mar 2016, Mar 2017, Mar 2018, Feb 2020. This one: Feb 2020

    Q. 10
    The photoelectric work function for a metal surface is 3.84×10−19 J3.84 \times 10^{- 19}\text{ J}. If the light of wavelength 5000 A˚5000\text{ Å} is incident on the surface of the metal, will there be photoelectric emission?

  5. Question 5

    AC Circuits. This type asked 3 times: Feb 2023, Jun 2025, Jun 2026. This one: Jun 2025

    Q. 10
    In a purely resistive circuit a source of e.m.f. having e=140sin⁡(3142t)e = 140\sin(3142t) is connected across a pure resistor. If value of rms current is 1.98A, calculate the value of resistance.