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A prism of refractive index sqrt(2) has ...

A prism of refractive index `sqrt(2)` has a prism angle of `60^(@)`. At what angle must a ray incident on it so that it suffers minimum deviation ?

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

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The correct Answer is:
A
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