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-I
PAPER-V
(Nuclear and Particle Physics)
Annual Examination, 2016
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. Explain clearly nuclear quadrupole moment and discuss the ground state of deuteron in the
light of the fact that it has small but definite quadrupole moment.
2. What is -decay Give Fermi theory of -decay. Discuss Fermi and Gamow-Teller selection
rules in the context of Fermi's theory of -disintegration.
3. Discuss the nature and properties of -mesons. How does it account for the charge
independence of nuclear forces Show that the parity of -mesons is negative.
4. What is majorana force Explain why a neutron-proton pair forms bound nucleus, while a bineutron
and a di-proton pair does not. How this exchange force gives rise to saturation in
binding energy
5. Discuss the quark model in detail. How does this model explain baryons and mesons
6. What are electric and magnetic transitions in Gamma-ray emission Explain multipolarity in
the Gamma transition.
7. Define the Q-value of a nuclear reaction. Establish the Q-equation of the nuclear reaction.
8. What are stripping and pick-up reactions Obtain an expression for reaction amplitude using
Born approximation for stripping and pick-up reaction.
9. Describe the compound nucleus theory of nuclear reactions. Give experimental evidences in
support of this theory.
10. Give an account of classification of hadrons. Explain symmetry and discuss octet and
decuplet multiplets for hadrons and baryons as well as octet multiplets for measons.