Physics wedgefilim Viva questions

01. What is the principle involved in wedge film?

02. What is a wedge shaped film?

03. What is superposition principle?

04. Define interference.

05. What are coherent sources?

06. What is a mono chromatic source? Give example.

07. What is meant by least count?

08. What is the least count of traveling microscope?

09. Why a glass plate is placed at an angle 450?

10. Instead of sodium vapor lamp if we use mercury source, is there any change in fringe pattern.

11. Why the readings are taken by coinciding the cross wire with dark fringes?

12. What are the uses of wedge film experiment?

13. What are the different types of phenomenon exhibited by light?

14. Which phenomenon of light is considered in explaining ‘interference’?

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