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To make the central fringe at the center...

To make the central fringe at the center`O` , mica sheet of refractive index `1.5` is introduced Choose the corect statement.

A

The thickness of sheet is `2(sqrt(2)-1)d` in front of `S_(1)`

B

The thickness of sheet is `(sqrt(2)+1)d` in front of `S_(2)`

C

The thickness of sheet is `(2sqrt(2)d-1)` in front of `S_(2)`

D

The thickness of sheet is `(2sqrt(2)-1)d` in front of `S_(1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`sqrt(2)d-d=(mu-1)timpliest=2(sqrt(2)-1)d`
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