PYQ Vault

Day 2: MH HSC Class 12 Physics

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

  1. Question 1

    Semiconductor Devices. Asked 3 times: Mar 2017, Mar 2022, Jun 2026

    Q. 19
    With the help of a neat circuit diagram, explain the working of a half wave rectifier. Draw input and output waveforms.

  2. Question 2

    Superposition of Waves. Asked 3 times: Mar 2019, Feb 2020, Jun 2026

    Q. 17
    Show that all harmonics are present in the case of an air column vibrating in a pipe open at both the ends.

  3. Question 3

    Superposition of Waves. Asked 3 times: Mar 2022, Feb 2025, Feb 2026

    Q. 11
    Distinguish between harmonics and overtones. [Any Two points]

  4. Question 4

    AC Circuits. Asked 3 times: Feb 2024, Jul 2024, Jun 2025

    Q. 28
    Using phasor diagram for a series LCR circuit, obtain an expression for impedance. Define admittance.

  5. Question 5

    Structure of Atoms and Nuclei. Asked 3 times: Mar 2019, Feb 2025, Jun 2025

    Q. 21
    Derive the decay law of radioactivity and state SI unit of 'activity.'