PYQ Vault

Day 38: MH HSC Class 12 Physics

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

  1. Question 1

    Rotational Dynamics. Asked once: Mar 2022 (same type asked 4 times)

    Q. 1(vii)
    When the bob performs a vertical circular motion and the string rotates in a vertical plane, the difference in the tension in the string at horizontal position and uppermost position is ________.

    Tap an option to check your answer.

  2. Question 2

    Dual Nature of Radiation and Matter. Asked once: Mar 2017 (same type asked 4 times)

    Q. 8 (OR)
    The work functions for potassium and caesium are 2.25 eV and 2.14 eV respectively. Is the photoelectric effect possible for either of them if the incident wavelength is 5180 A˚5180\text{ Å}? [Given : Planck's constant =6.63×10−34 J.s.= 6.63 \times 10^{- 34}\text{ J.s.}; Velocity of light =3×108 m/s;1 eV=1.6×10−19 J]= 3 \times 10^{8}\text{ m/s};1\text{ eV} = 1.6 \times 10^{- 19}\text{ J} \rbrack.

  3. Question 3

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

    Q. 9
    A 100 Ω100\ \Omega resistor is connected to a 220 V, 50 Hz supply. Calculate: (i) r.m.s. value of current and (ii) net power consumed over the full cycle

  4. Question 4

    Dual Nature of Radiation and Matter. Asked once: Feb 2020 (same type asked 3 times)

    Q. 3
    Define: (a) Threshold frequency (b) Photoelectric work function.

  5. Question 5

    Electrostatics. Asked once: Feb 2024 (same type asked 3 times)

    Answer the following questions :
    Q. 2(viii)
    Two capacitors of capacities 5μF5\mu F and 10μF10\mu F respectively are connected in series. Calculate the resultant capacity of the combination.