Test Index

WBJEE 2015 Physics Solved Paper

© examsnet.com

Question : 28

Total: 40

A thin plastic sheet of refractive index 1.6 is used to cover one of slits of a double slit arrangement. The central pointon the screen is now occupied by what would have been the 7th bright fringe before the plastic was used. If thewavelength of light is 600 nm, what is the thickness (in µm) of the plastic?

7
4
8
6

Go to Question:

Prev Question

Next Question