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When entire Young's double slit apparatu...

When entire Young's double slit apparatus is immersed in a liquid the fringe width decreases by `20^(@)`. The refractive index of the liquid is

A

`1.5`

B

`1.25`

C

`0.8`

D

`1.33`

Text Solution

AI Generated Solution

To solve the problem, we need to find the refractive index of the liquid when the fringe width of Young's double slit experiment decreases by 20%. Let's break it down step by step. ### Step-by-Step Solution: 1. **Understanding Fringe Width**: The fringe width (β) in Young's double slit experiment is given by the formula: \[ \beta = \frac{\lambda D}{d} ...
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