N A L A N D A O P E N U N I V E R S I T Y
M.Sc. Physics, Part-II
PAPER-XV
(Advanced Condensed Matter Physics)
Annual Examination, 2016
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. Derive Clausius-Mossotti formula relating the dielectric constant and the polarisability for a
composite dielectric material.
2. What is Mösbauer effect Explain Doppler broadening through intensity-frequency graphs
for gamma emission and absorption by identical nuclei.
3. State Gruneisen law. Derive equation of state and gruneisen parameter for solid.
4. Establish Lydden-Sach-Teller relation between the static dielectric constant and that at
optical frequencies.
5. What is skin effect Distinguish between normal and anamalous skin effect. Give the
mathematical theory of anomalous skin effect. How do you get information about Fermi
structure with the help of this effect
6. Discuss A.C. Josephson effect. Show that current oscillates with the frequency

ev
w
2
.
7. What is Debye-Waller factor What is its origin Discuss the temperature dependance of
the Bragg reflection.
8. Give a quantitative treatment of BCS ground state. Obtain an expression for the energy gap
at 0K.
9. What is polariton Obtain polariton dispension relation. How does it stand the experiment
test
10. Give an account of Ginzberg-Landon theory of the phenomenology of the super conducting
state. How do you get coherence length