PYQ Vault

Day 33: 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 2017, Feb 2024. This one: Feb 2024

    Answer the following questions :
    Q. 2(i)
    Define centripetal force.

  2. Question 2

    Structure of Atoms and Nuclei. This type asked 2 times: Mar 2016, Feb 2023. This one: Feb 2023

    Q. 14
    Disintegration rate of a radio-active sample is 101010^{10} per hour at 20 hours from the start. It reduces to 5×1095 \times 10^{9} per hour after 30 hours. Calculate the decay constant.

  3. Question 3

    AC Circuits. This type asked 2 times: Feb 2020, Mar 2022. This one: Mar 2022

    Q. 13
    A 0.1 H inductor, a 25×10−6 F25 \times 10^{- 6}\text{ F} capacitor and a 15Ω15\Omega resistor are connected in series to a 120 V, 50 Hz AC source. Calculate the resonant frequency.

  4. Question 4

    Kinetic Theory of Gases and Radiation. This type asked 2 times: Mar 2017, Mar 2022. This one: Mar 2022

    Q. 1(v)
    The root mean square speed of the molecules of a gas is proportional to ________. [T = Absolute temperature of gas].

    Tap an option to check your answer.

  5. Question 5

    Electrostatics. This type asked 2 times: Mar 2018, Feb 2020. This one: Feb 2020

    Q. 2(viii)
    Capacity of a parallel capacitor with dielectric constant 5 is 40μF40\mu\text{F}. Calculate the capacity of the same capacitor when dielectric material is removed.