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A double slit experiment is performed wi...

A double slit experiment is performed with light of wavelength `500nm`. A thin film of thickness `2mum` and refractive index `1.5` is introduced in the path of the upper beam. The location of the central maximum will

A

reamain unshifted

B

shift downward by nearly two fringes

C

shift upward by nearly two fringes

D

shift downward by 10 fringes

Text Solution

Verified by Experts

The correct Answer is:
C
`(mu-1)t=n lambda`
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NARAYNA-WAVE OPTICS-LEVEL - II (C.W)
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