PYQ Vault

Day 14: MH HSC Class 12 Physics

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

  1. Question 1

    Oscillations. Asked 2 times: Mar 2017, Feb 2020

    Q. 16
    Define linear S.H.M. Obtain differential equation of linear S.H.M.

  2. Question 2

    Rotational Dynamics. Asked 2 times: Mar 2016, Feb 2020

    Q. 18
    State and prove the principle of parallel axes in rotational motion.

  3. Question 3

    Superposition of Waves. Asked 2 times: Mar 2019, Feb 2020

    Q. 12
    A wire length 1 m and mass 2 g is in unison with a tuning fork of frequency 300 Hz. Calculate the tension produced in the wire.

  4. Question 4

    Dual Nature of Radiation and Matter. Asked 2 times: Mar 2016*, Mar 2018 (* = numbers or wording changed that year)

    Q. 8. B (OR)
    The work function for a metal surface is 2.2 eV2.2\text{ eV}. If light of wavelength 5000 A˚5000\text{ Å} is incident on the surface of the metal, find the threshold frequency and incident frequency. Will there be an emission of photoelectrons or not? (c=3×108 m/s,1 eV=1.6×10−19 J,h=6.63×10−34 J.s.c = 3 \times 10^{8}\text{ m/s},1\text{ eV} = 1.6 \times 10^{- 19}\text{ J},h = 6.63 \times 10^{- 34}\text{ J.s.}).

  5. Question 5

    Structure of Atoms and Nuclei. Asked 2 times: Mar 2017*, Mar 2018 (* = numbers or wording changed that year)

    Q. 8. A OR
    Draw a neat and labelled energy level diagram and explain Balmer series and Brackett series of spectral lines for hydrogen atom.