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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION -PHYSICS
FIFTH SEMESTER APRIL 2018
PH 5507 PH 5504 PH 5500 ATOMIC NUCLEAR PHYSICS
Date: 27-04-2018 Dept. No. Max. 100 Marks
Time: 09:00-12:00
PART A (10X 2 20)
Answer ALL questions
1. State Pauli's exclusion principle.
2. What is Stark effect?
3. Define mass defect and packing fraction.
4. State Geiger- Nuttal law.
5. What are slow neutrons?
6. Define nuclear fission.
7. What are cosmic rays?
8. Write the Quark content and strangeness of Proton and neutron.
9. Define chemical shift.
10. What is Larmor precession?
PART B x7. 5 30
Answer any FOUR question
11. Explain in detail, anomalous Zeeman Effect.
12. Explain line and continuous spectrum of beta decay.
13. Discuss liquid drop model of a nucleus.
14. Explain cosmic ray showers, Pair production and Annihilation of matter.
15. Describe the principle of nuclear magnetic resonance.
16. Describe Rabi's method of determining nuclear magnetic moment
PART C 4 x 12.5 50)
Answer any FOUR questions
17. Describe Thomson's parabola method for positive ray analysis.
18. Discuss in detail the Stern-Gerlach experiment
19. Describe the construction and working of a nuclear reactor.
20. Discuss elementary particle quantum numbers and the associated conservation laws.
21. Explain Mossbauer spectroscopy.
22. Outline the tunneling phenomena to explain α decay.