ATOMIC AND NUCLEAR PHYSICS - 7BPH4C1 - QB
PART – A
Unit - I
1. What is critical potential? What are its two kinds?
2. Write note on photoelectric cell.
3. Give the principle of mass spectrograph.
4. State the laws of photoelectric emission.
5. Write down any three properties of positive rays.
6. Mention any three applications of photoelectric cells.
7. What is photoelectric cell?
Unit - II
8. State Pauli’s exclusion principle.
9. Distinguish between normal Zeeman Effect and anomalous Zeeman Effect?
10. What is anomalous Zeeman Effect?
11. Define Zeeman Effect. Also give the value of Zeeman shift.
12. Explain briefly the features of vector atom model.
13. What is meant by j-j coupling?
14. Write down the Larmour’s theorem.
15. What are selection rules?
Unit - III
16. Write note on characteristic x-rays.
17. Define Miller indices.
18. State Mosley’s law.
19. What is Unit cell?
20. What is Bragg’s law for x-rays diffraction?
21. What is an element of symmetry in a crystal? Briefly explain.
22. Draw the structure of NaCl crystal.
23. Why ordinary plane transmission grating cannot be used to product diffraction effects in x-rays?
24. What is Bravais lattice?
Unit - IV
25. Differentiate isotope from isobars
26. State the principle of GM counter.
27. The half life of 84Po218 is 3 minutes. What percentage of the samples has decayed in 15 minutes?
28. Give the importance of GM counter.
29. Briefly explain various classifications of the nuclei.
30. Write down working of Betatron.
31. State the law of radioactive disintegration.
32. Draw the schematic diagram of a cloud chamber.
Unit - V
33. Define nuclear fusion.
34. Write note on Van Allen belts.
35. What is chain reaction? Give an example.
36. What are secondary cosmic rays?
37. What is controlled chain reaction? Where it is used?
38. What are cosmic rays?
39. What is meant be breeder reactor?
40. What are Baryons?
PART – B
Unit - I
1. Obtain Einstein’s Photoelectric Equation
2. Discuss the principle and action of Aston’s mass spectrograph.
3. Give the laws of photoelectric emission
4. Describe the Lenard’s experiment
Unit - II
6. Discuss LS coupling.
7. Explain the fine structure of Sodium D lines.
8. Write a note on periodic classification of elements.
9. Give the details about the fine structure of alkali spectra.
10. State Pauli’s exclusion principle. How is it useful in the arrangement of differ element in the periodic table
11. Explain the various quantum numbers associated with the vector atom model.
12. Describe the Stern and Gerlach experiment and indicate the importance of results obtained.
13. Explain the importance of Bohr Magneton.
Unit - III
14. Explain the Braggs x-ray spectrometer.
15. Explain the term 'Miller indices.
16. Describe Bragg’s law.
17. Give the structure of diamond.
18. Draw NaCl structure and explain it.
Unit - IV
19. Write not on radio carbon dating
20. Explain the Geiger – Nuttal experiment to measure the range of alpha particles. Discuss the Geiger- Nuttal law.
21. Derive an expression for Half-life period.
22. Discuss about Photographic emulsion technique.
23. Describe GM counter and give its importance.
24. Mention the application of radio isotopes.
25. Compare and contrast the properties of alpha, beta and gamma rays.
26. Write a note on thermo nuclear reactions.
Unit - V
27. Explain how the intensity of the cosmic rays changes with altitude.
28. Explain about Anti-particle and Anti-matter.
29. Describe the principle, construction and working of a nuclear reactor.
30. Give the qualitative of Gamow’s theory for alpha decay.
31. Discuss about cosmic ray showers
32. Explain four factor formula
33. Explain latitude effect.
PART – C
Unit - I
1. Describe the working of Aston’s mass spectrograph
2. Obtain Einstein’s photoelectric equation. Also verify it using Millikan’s experiment.
3. Describe the construction and working of Bainbridge mass spectrometer.
4. Describe the experimental determination of critical voltage by Frank and Hertz experiment.
Unit - II
5. Describe about the j-j coupling and LS coupling
6. Describe about the result of Stern-Gerlach experiment
7. Discuss about the Debye’s explanation for normal Zeeman Effect. Also explain the anomalous Zeeman Effect.
Unit - III
8. Derive an expression for the wavelength shift of a photon colliding with an electron.
9. Give the theory of Compton effect and briefly explain its experimental verification.
10. Describe the powder photograph method of crystal diffraction.
Unit - IV
11. Write notes on: A) Radio-carbon dating.B) Nuclear Isomerism.C) Neutrino hypothesis.
12. Explain the action of Betatron.
13. Explain the term range of alpha particles. Describe the experimental verification method of determining the range of alpha particles from a radio-active source in standard air
14. Explain the construction and working of a GM counter.
Unit - V
15. How do you classify the elementary particle into four groups?
16. Write an essay on the Nuclear reactor
17. Discuss the proton-proton cycle and carbon-nitrogen cycle as a source of stellar energy.
18. Write notes on: A) breeder Reactor. B) Van Allen Belts.C) Quark model.