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A prism of refractive index sqrt2 has re...

A prism of refractive index sqrt2 has refractive angle `60^@.` In the order that a ray suffers minimum deviation it should be incident at an angle of

A

`45^(@)`

B

`60^(@)`

C

`90^(@)`

D

`180^(@)`

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The correct Answer is:
A
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