Engineering Physics

Review Questions

1. Explain the concept of coherence.

    

   [Sept. 2009, Set 2]; [May 2008, Set 1]

2. Discuss why two independent sources of light of the same wave length cannot produce interference fringes.

    

   [Sept. 2008, Set 2]; [May 2008, Set 1]

3. What are the necessary conditions for obtaining interference fringes?

    

   [Sept. 2008, Set 2]; [May 2008, Set 1]

4. Define interference of light.

    

   [May 2008, Set 2]

5. Describe and explain the phenomenon of interference of light.

    

   [May 2008, Set 2]

6. Explain how Newton’s rings are formed.

    

   [June 2009, Set 3]

7. How do you obtain circular rings in the Newton’s rings experiment.

    

   [June 2009, Set 3]

8. Derive an expression for the radius of curvature in the Newton’s ring experiment.

    

   [June 2009, Set 4]

9. Prove that the diameters ...