DISTANCE EDUCATION
M.Sc. DEGREE EXAMINATION, MAY 2016.
Physics
SOLID STATE PHYSICS
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question carries 20 marks.
20 100)
1. Explain about h.c.p. and f.c.c Lattice structure with
diagram and examples.
State and explain the properties of reciprocal
lattices and hence show that the f.c.c. lattice is the
reciprocal of the b.c.c. lattice and vice versa.
Write a brief note on quasi crystals.
2. Explain the Fourier analysis of the basis.
Discuss about the Inelastic scattering by phonous.

Write a note on Hydrogen bonds.
3. Write a brief account of Einstein's theory of specific
heat of solids.
Give Fermi-Dirac distribution function.
Explain the heat capacity of the electron gas.
Sub. Code
23
DE-3838
2
SP 5
4. State and explain the Bloch theorem.
Derive the equation for the conductivity of an
intrinsic semi conductor in terms of carrier
concentration and carrier mobilities.
Write a note on Nano structure.
5. Explain in detail about De Hauss Van Alphen
Effect.
Deduce Clausius-Mosetti's relation and explain its
use in predicting the Dielectric Constant of solids.

Write a brief note on super lattices.
6. Explain the Langevin's classical theory of
Paramagnetism and find an expression for the
paramagnetic susceptibility.
What are the characteristics of Ferro magnets.
Explain anti ferromagnetism and describe the
temperature-variation of its susceptibility.
7. Elaborate briefly on Quantum theory of
diamagnetism of mononuclear system.
Write a note on Piezo electricity.
Explain about the thermal excitation of Magnous
and derive Bloch T3/ 2 law.
8. Explain about the Weiss's theory of
Ferromagneticism.
Describe briefly about quantum theory of
Ferromagneticism.
Write a note on Ferrimagnetic order.