Acharya Nagarjuna University (ANU) 2005 M.Sc Information and Communication Technology ELECTROMAGNETIC THEORY AND MODERN OPTICS - Question Paper

M.Sc. (Final) DEGREE EXAMINATION,
DECEMBER 2005.
Second Year
Physics
Paper V - ELECTROMAGNETIC THEORY AND MODERN OPTICS

Time : 3 hours Maximum : 100 marks

ans any 5 ques..
All ques. carry equal marks.

1. (a) Show that the normal component of magnetic induction and electric displacement are continuous across the boundsry.

(b) discuss the action of Fresnel.s Rhomd.

2. explain in detail the phenomenon of dispersion in absorbing media on the basis of electromagnetic theory.

3. (a) explain the characteristics properties of laser light.

(b) Derive the condition for population inversion needed for light amplification.

4. (a) explain the stability criteria of car focal optical resonator.

(b) explain the limitation line width due to radiating decay.

5. explain n detail the different conditions to record various kinds of hologram.

6. define in detail the Red time and speckle interferometry.

7. (a) define the fundamental elements of an optical fiber communication system with the help of a block diagram.

(b) explain the propagation of meridiard rays in a step-index optical fiber.

8. (a) explain the wave equations for graded index fibers and hence derive mode equations.

(b) explain about the core-cladding losses in optical fibers.

9. ans any 2 of the following:

(a) Tatal Internal Reflection.
(b) Ruby Laser.
(c) LIDAR.
(d) Intermodal dispersion.

Earning:   Approval pending.