Solved Question Papers of KSOU

I am doing 2nd Semester of M.SC Physics Program of KSOU. Exam schedule has published by University. Now I want to start preparation of exam. So pls provide question papers of M.SC Physics 2nd Semester Program.

[shikha]

As you want question papers of M.SC Physics 2nd Semester Course of KSOU University, so here I am providing followings:

KSOU M.SC Physics 2nd Sem Exam Paper
1. (a) Define electromagnetic potentials. Express Maxwell’s equations in terms of the
electromagnetic potentials.

(b) Show that the gauge transforms A' ' satisfy the Lorentz condition if and only
if the gauge functions satisfy the wave equation

2. (a) Obtain an expression for Lienard-Wiechert potentials of a moving point charge.
(b) Show that under Lorentz gauge E and B also satisfy the wave equation

3 .(a) Deduce the Abraham-Lorentz formula for radiation reaction and explain its
significance.
(b) Show that the expression of power radiated by an oscillating electric dipole leads to
Larmor’s formula.

4 .(a) Derive expression for the power radiated by an oscillating electric dipole.
(b) Write a note on Pinch effect.

5. (a) Deduce an expression for Poynting vector and discuss the importance of Poynting
theorem.
(b) Starting from Fresnel’s equations obtain Brewster’s law.
OR
6 .(a) Obtain an expression for Clausius- Mossotti equation for electric fields in solids.
(b) Write a note on retardation plates.

7. (a) Give the theory of multiple reflections from a plane parallel film.
(b) Note down the conditions for sustainable interference.
OR
8. (a) Give a detailed description of diffraction at a circular aperture.
(b) Discuss Fresnel’s diffraction in brief.

9. Answer any four of the following:
(a) Obtain an expression for electric quadrupole moment.
(b) Show that when the velocity is zero, the Lienard-Wiechert potentials generate
electrostatic potential.
(c) Obtain an expression for power radiated by an accelerated charge when its
acceleration is collinear to its velocity (bremsstrahlung).