PYQ Vault

Day 60: MH HSC Class 12 Physics

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

  1. Question 1

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

    Q. 20
    Derive an expression for emf (e) generated in a conductor of length (l) moving in uniform magnetic field (B) with uniform velocity (v) along x-axis.

  2. Question 2

    Oscillations. Asked once: Mar 2016 (same type asked 3 times)

    Q. 1(vii)
    A particle performing linear S.H.M. has a period of 6.28 seconds and a pathlength of 20 cm. What is the velocity when its displacement is 6 cm from mean position?

  3. Question 3

    Dual Nature of Radiation and Matter. Asked once: Mar 2018 (same type asked 3 times)

    Q. 6(vii)
    Calculate the de-Broglie wavelength of an electron moving with one fifth of the speed of light. Neglect relativistic effects. (h=6.63×10−34 J.s.,c=3×108 m/sh = 6.63 \times 10^{- 34}\text{ J.s.},c = 3 \times 10^{8}\text{ m/s}, mass of electron =9×10−31 kg= 9 \times 10^{- 31}\text{ kg}).

  4. Question 4

    Mechanical Properties of Fluids. Asked once: Mar 2018 (same type asked 3 times)

    Q. 2(vi)
    Calculate the work done in increasing the radius of a soap bubble in air from 1 cm to 2 cm. The surface tension of soap solution is 30 dyne/cm. (π=3.142\pi = 3.142).

  5. Question 5

    Rotational Dynamics. Asked once: Mar 2016 (same type asked 3 times)

    Q. 1(v)
    A coin kept at a distance of 5cm from the centre of a turntable of radius 1.5m just begins to slip when the turntable rotates at a speed of 90 r.p.m. Calculate the coefficient of static friction between the coin and the turntable. [g=9.8 m/s2g = 9.8\text{ m/s}^{2}].