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Young's double slite experiment is made ...

Young's double slite experiment is made in a liquid. The 10th bright fringe in liquid lies in screen where `6^(th)` dark fringes lies in vaccume. The refractive index of the liquid is approximately.

A

`1.8`

B

`1.54`

C

`1.67`

D

`1.2`

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The correct Answer is:
A
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