A Young s double slit apparatus is immersed in a liquid of refractive index 1.25. What is the ratio of the fringe width in air and liquid?

A Young s double slit apparatus is immersed in a liquid of refractive

1.	A Young s double slit apparatus is immersed in a liquid of refractive index 1.25. What is the ratio of the fringe width in air and liquid?
A.	1: 2
B.	4: 5
C.	5: 4
D.	2: 1
Answer» D. 2: 1

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A Young s double slit apparatus is immersed in a liquid of refractive index 1.25. What is the ratio of the fringe width in air and liquid?

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