PYQ Vault

Day 52: MH HSC Class 12 Physics

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

  1. Question 1

    AC Circuits. Asked once: Feb 2020 (same type asked 2 times)

    Q. 11
    A parallel L-C circuit comprises of a 5H inductor and 5μF5\mu\text{F} capacitor. Calculate the resonant frequency of the circuit.

  2. Question 2

    Kinetic Theory of Gases and Radiation. Asked once: Mar 2017 (same type asked 2 times)

    Q. 2(ii)
    Prove that root mean square velocity of gas molecule is directly proportional to the square root of its absolute temperature.

  3. Question 3

    Electrostatics. Asked once: Mar 2018 (same type asked 2 times)

    Q. 8. B
    A parallel plate air condenser has a capacity of 20μF20\mu\text{F}. What will be the new capacity if: i. the distance between the two plates is doubled? ii. a marble slab of dielectric constant 8 is introduced between the two plates?

  4. Question 4

    Magnetic Fields due to Electric Current. Asked once: Mar 2017 (same type asked 2 times)

    Q. 6(v)
    A rectangular coil of a moving coil galvanometer contains 100 turns, each having area 15 cm215\text{ cm}^{2}. It is suspended in the radial magnetic field 0.03 T0.03\text{ T}. The twist constant of suspension fibre is 15×10−10 N-m/degree15 \times 10^{- 10}\text{ N-m/degree}. Calculate the sensitivity of the moving coil galvanometer.

  5. Question 5

    Magnetic Fields due to Electric Current. Asked once: Mar 2018 (same type asked 2 times)

    Q. 6(viii)
    In a cyclotron, magnetic field of 1.4 Wb/m21.4\text{ Wb/m}^{2} is used. To accelerate protons, how rapidly should the electric field between the Dees be reversed? (π=3.142,Mp=1.67×10−27 kg,e=1.6×10−19 C\pi = 3.142,M_{p} = 1.67 \times 10^{- 27}\text{ kg},e = 1.6 \times 10^{- 19}\text{ C}).