Bharathiar University 2007 M.Phil Material Physics -e - Question Paper

M.Phil. Material Physics May-June 2007

Time : 3 hours Maximum : 100 marks
ans any 5 ques..
All ques. carry equal marks.
(5 ? 20 = 100)
1. Define electric susceptibility. discuss in detail the classical treatment of electric susceptibility for independent systems.
2. What is g-factor? explain the structure determination procedure for amides and nitriles using g-factor.
3. Draw the cole-cole plot for a RC combination and explain its salient features. discuss the impedance measurement technique with the necessary theory.
4. Explain various methods of measurement of dielectric constant for solids with the necessary theory.
5. Discuss the physical properties of H-bonded systems. discuss the quantum mechanical model and find potential curves for H-bonded systems.
6. Describe in detail different IR group frequencies and its importance in the study of molecular structure.
7. What are LB films? How it is various from an ordinary thin film? discuss the method of preparation of LB films with necessary diagrams.
8. Explain the optical properties of LB films with an example. explain the method of analysis of band gap energy from the optical transmittance.

Earning:   Approval pending.