PAPER - 301
                                          2013-2015
                                      full marks : 80


1. What are electromagnetic field tensor? Obtain expression for these. Prove that invariance of the quantity E.B   under Lorentz transformation with usual meaning of symbols.

2.Obtain expression for power radiated by slowly moving accelerated charged particle and describe its angular distribution.

3.Obtian electric and magnetic field due to uniformly moving charged particles.

4. What do you mean by pinch effect ?  Show that sum of kinetic pressure and self magnetic pressure in cylindrical plasma will remain constant at each point.

5. What is Landau damping ? Derive Boltazmann-vlasar equation for plasma .

6. Drive Appleton-Hartree formula for propagation of e.m. wave through ionosphere.

7.Give the significance of debye shielding . Deduce expression for Debye potential and shielding distance.

8.What is plasma ? Give the appropriate reason for explanation of fourth state of matter.

9. Write short notes on any two of the following:

(a) Atmospheric whistler.

(b) Vector and scalar potential .

(c) Electromagnetic tensor.

(d) Helicon rotation.
                                                                 exam held on: 25/04/2015