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On introducing a thin film in the path o...

On introducing a thin film in the path of one of the two interfering beam, the central fringe will shift by one fringe width. If `mu=1.5,` the thickness of the film is (wavelength of monochromatic light is `lambda`)

A

`4lamda`

B

`3lamda`

C

`2lamda`

D

`lamda`

Text Solution

Verified by Experts

The correct Answer is:
C
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