PHYS 1402 EXAM ESSAY QUESTIONS. YOU MAY SUBMIT YOUR ANSWERS TO THESE QUESTIONS ONLINE OR TURN IN A HARD COPY BY TUESDAY MAY 6^TH. Select six of the following seven questions for discussion purposes.

1. Explain how superconductivity applies to magnetism. In your discussion include both theory and the various practical applications of this principle.

2. Classical Experiments in Modern Physics. Elaborate on the following four classical experiments:

a. The Michelson-Morley Experiment 1887.

b. Gold Foil Experiment 1911

c. The Oil Drop Experiment-Robert Millikan

d. The Photoelectric Effect

3. Lasers are used in a variety of applications including in eye surgery. In your discussion cover the theory of how lasers operate and explain how they can be used in practice. Include at least four applications.

4. Modern medicine uses a variety of imaging techniques. Explain the principle of imaging involving in: X-rays, the MRI, CT scans, and PET scanners.

5. Discuss the difference between fission and fusion. How is each reaction started?

What are the various applications of each? What progress is being made in fusion as a practical energy source?

6. Explain the postulates and assumptions of both Special Relativity and General Relativity? What are direct consequences of each theory to time, space including black holes.

7. Comment on the three types of radiation and the origin of each. What are applications of the various types of radiation? List the hazzards to living organisms. What factors affect the radiation levels received?