PYQ Vault

Day 43: MH HSC Class 12 Physics

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

  1. Question 1

    Oscillations. Asked once: Feb 2023 (same type asked 3 times)

    Answer the following questions:
    Q. 2(vii)
    Calculate the velocity of a particle performing S.H.M. after 1 second, if its displacement is given by x=5sin⁡(πt3)x = 5\sin\left(\dfrac{\pi t}{3}\right) m.

  2. Question 2

    Structure of Atoms and Nuclei. Asked once: Mar 2022 (same type asked 3 times)

    Q. 2(vi)
    What is the mathematical formula for third postulate of Bohr's atomic model?

  3. Question 3

    Dual Nature of Radiation and Matter. Asked once: Mar 2019 (same type asked 3 times)

    Q. 4
    An electron of energy 150 eV150\text{ eV} has wavelength of 10−10 m10^{- 10}\text{ m}. The wavelength of a 0.60 keV0.60\text{ keV} electron is ________.

    Tap an option to check your answer.

  4. Question 4

    Mechanical Properties of Fluids. Asked once: Feb 2020 (same type asked 3 times)

    Q. 29
    What is capillarity? Give any two applications of capillarity? Calculate the work done in blowing a soap bubble of radius 0.1 m. (Surface tension of soap solution = 30 dynecm\frac{\text{dyne}}{\text{cm}}).

  5. Question 5

    Rotational Dynamics. Asked once: Mar 2018 (same type asked 3 times)

    Q. 2(vii)
    A flat curve on a highway has a radius of curvature 400 m. A car goes around a curve at a speed of 32 m/s. What is the minimum value of coefficient of friction that will prevent the car from sliding? (g=9.8 m/s2g = 9.8\text{ m/s}^{2}).