12th Physics Important Questions With PDF

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12th Physics Important Questions

Topic	12th Physics
Type	Important Questions
Provide by	Hindijankaripur
Official Site	Hindijankaripur.com
Telegram	https://t.me/studentcafeindia

Electrostatics

1. Define Coulomb’s law and explain the principle of superposition in electrostatics.
2. Explain the concept of electric field and derive the expression for the electric field due to a point charge.
3. What is an electric dipole? Derive the expression for the electric field on the axial line of a dipole.

Current Electricity

4. State and explain Ohm’s law. How does resistivity vary with temperature?
5. Derive the expression for the equivalent resistance of three resistors connected in series and in parallel.
6. Explain Kirchhoff’s laws and their applications in electrical circuits.

Magnetism and Matter

7. Define magnetic flux and state Faraday’s law of electromagnetic induction.
8. Explain the concept of magnetic field and derive the expression for the magnetic field due to a current-carrying circular loop.
9. Describe the working principle of a moving coil galvanometer and its conversion into an ammeter and voltmeter.

Electromagnetic Induction

10. What is Lenz’s law? Explain its significance with an example.
11. Derive the expression for the induced EMF in a coil rotating in a uniform magnetic field.
12. Explain self-induction and mutual induction with suitable examples.

Alternating Current

13. Define alternating current and derive the expression for the RMS value of AC.
14. Explain the working of a transformer and derive the relation between primary and secondary voltage and current.
15. Discuss the concept of resonance in an AC circuit and its practical applications.

Electromagnetic Waves

16. Describe the electromagnetic spectrum and mention the uses of different regions of the spectrum.
17. State and explain Maxwell’s equations.

Optics

18. Explain the phenomenon of interference of light and derive the conditions for constructive and destructive interference.
19. Describe Young’s double-slit experiment and derive the expression for fringe width.
20. Explain the working of a compound microscope and derive the expression for its magnifying power.

Dual Nature of Radiation and Matter

21. Describe the photoelectric effect and derive Einstein’s photoelectric equation.
22. Explain the concept of de Broglie wavelength and derive the expression for the wavelength associated with a moving particle.

Atoms and Nuclei

23. Describe the Bohr model of the hydrogen atom and derive the expression for the energy levels of the electron in a hydrogen atom.
24. Explain the concept of nuclear fission and fusion with examples.

12th Physics Important Questions PDF

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