DISTANCE EDUCATION
M.Sc. (Physics) DEGREE EXAMINATION, MAY 2017.
NUCLEAR AND PARTICLE PHYSICS
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question carries 20 marks.
20 100)
1. Describe the Fermi's theory of beta decay. Obtain
the expression for emitted beta ray spectrum.
What do you understand by internal conversion?
How does it take place?
2. Discuss the experimental method of the parity
violation in beta decay.
Briefly explain about the Neutrinos.
Write a note on Electron capture.
3. Give a brief account of the collective model of the
nucleus. How does it help in understanding the
phenomenon of nuclear fusion?
What are Magic numbers? Give its significance.
4. Deduce Bohr-Wheeler's theory of nuclear fission.
Write notes on Schmidt lines Selection rules
for beta decay.
Sub. Code
24
DE-657
2
Ws9
5. Write down the properties of deutron.
Explain the method of partial wave analysis and
phase shifts in a nucleus.
Write a note on effective range theory.
6. Explain the compound nuclear formation and
breakup.
Write a note on thermal neutrons.
Explain neutron cycle in a thermo nuclear
reaction.
7. Briefly explain the controlled thermo nuclear
reactions.
Explain the theory of neutron-proton scattering at
low energies and deduce an expression for the
scattering cross section in terms of the scattering
length and the effective range.
8. Write short notes on Leptons. Baryons and quarks.

Discuss about the fundamental interactions in
nuclear and elementary particles.