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In the Young's double slit experiment , ...

In the Young's double slit experiment , a mica slip of thickness t and refractive index `mu` is introduced in the ray from first source `S_(1)` . By how much distance fringes pattern will be displaced ? (d = distance between the slits and D is the distance between slits and screen)

A

`d/D(mu-1)t`

B

`D/d(mu-1)t`

C

`d/((mu.1)D)`

D

`D/d(mu-1)`

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(b) Fringe displacement `x_(0)=(D(mu-1)t)/d`
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