PYQ Vault

Day 12: MH HSC Class 12 Physics

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

  1. Question 1

    Semiconductor Devices. Asked 2 times: Mar 2018, Jul 2024

    Q. 21
    What is voltage regulation? Explain the working of Zener diode as a voltage regulator.

  2. Question 2

    Structure of Atoms and Nuclei. Asked 2 times: Mar 2019, Jul 2024

    Q. 20
    What is ionization energy? Assuming expression for energy of electron, derive an expression for wavelength of spectral lines in hydrogen atom.

  3. Question 3

    Electromagnetic Induction. Asked 2 times: Mar 2016, Feb 2024

    Q. 27
    What is a transformer? Explain construction and working of a transformer. Derive the equation for a transformer.

  4. Question 4

    Structure of Atoms and Nuclei. Asked 2 times: Feb 2020, Feb 2024

    Q. 14
    Calculate the change in angular momentum of electron when it jumps from third orbit to first orbit in hydrogen atom.

  5. Question 5

    AC Circuits. Asked 2 times: Mar 2022, Feb 2023

    Answer the following questions:
    Q. 2(iii)
    What is the average value of alternating current over a complete cycle?