CBSE 2025 12th Physics Most Expected Questions for Exam Day

1.

Electric field intensity due to a dipole?

2.

Application of Gauss: E.F. I. due to an infinitely long wire & due to a spherical shell.

3.

Electric potential dies to a point charge.

4.

Potential energy of dipole in an external field.

5.

Capacitance of a parallel plate capacitance.

6.

Derive for drift velocity and  its relation with the current.

7.

Cells connected in parallel.

8.

Bio-Savart's Law and its comparison with Coulomb's law.

9.

Magnetic induction on the axis of a circular loop.

10.

Force on a current-carrying conductor in a uniform magnetic field

11.

Impedance & phase difference in series LCR.

12.

Average power and power factor of LCR circuit.

13.

Lens maker's formula.

14.

Angle of deviation of prism. Case of minimum deviation.

15.

Working of Compound microscope & astronomical telescope.

16.

Explain the photoelectric effect and derive Einstein's photoelectric equation.

17.

Derive the expression for de Broglie wavelength.

18.

Explain Bohr's atomic model and derive the expression for the radius of the nth orbit of an electron in a hydrogen atom.

19.

Discuss the limitations of Bohr's atomic model.

20.

Explain the working of a p-n junction diode and its characteristics.

21.

Discuss nuclear fission and nuclear fusion reactions.

22.

Explain the electromagnetic spectrum and its various applications.

23.

Derive the expression for the self-inductance of a solenoid.

24.

Discuss the difference between interference and diffraction.

25.

Proof of laws of reflection and refraction using Huygens's principle. Interference