M.Sc. DEGREE EXAMINATION, FEBRUARY 2018.
Fourth Semester
Physics
Paper II NUCLEAR AND PARTICLE PHYSICS
(Non CBCS Old Regulation)
2 20742
Time 3 Hours Max. Marks 100
SECTION — A
(Short Answer Type) 8 40 Marks)
Answer any FIVE of the following.
1. Explain the characteristics of nuclear forces.
2. Explain Bethe-Weizacker semi-empirical mass formula.
3. What is nuclear cross section? Explain.
4. Explain the Compton scattering and pair production.
5. Briefly explain the principle and working of cyclotron.
6. Explain the significance of four factor formula.
7. Briefly explain the various interactions among the elementary particles.
8. Briefly explain Quark's model of the nucleus.
SECTION — B
(Essay Answer Types)
Answer ALL questions. 15 60 Marks)
9. Explain the ground state of Deuteron and discuss in detail the Meson theory
of nuclear forces.
Or
Give a detailed account of the collective model of the nucleus.
10. Discuss the different types of nuclear reactions and explain resonance theory.
Or
What is radioactive decay? Explain in detail the Fermi theory of Beta decay.

11. Differentiate between low energy and high energy circular accelerators and
explain the working of Microton.
Or
Explain the general aspects and classification of nuclear reactors and discuss
the critical size of a reactor.
12. Discuss the conservation laws that explain the behaviour of elementary
particles and explain the properties of leptons and mesons.
Or
Explain the CPT theorem and explain the elementary ideas of Higg's particle.
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