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An equilateral prism is placed on a hori...

An equilateral prism is placed on a horizontal surface. A ray PQ is incident onto it. For minimum deviation `

A

`PQ` is horizontal

B

`QR` is horizontal

C

`RS` is horizontal

D

Either `PQ` or `RS` is horizontal

Text Solution

Verified by Experts

The correct Answer is:
B
In minimum deviation position refracted ray inside the prism is parallel to the base of the prism.
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