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A ray of light strikes a glass plate at ...

A ray of light strikes a glass plate at an angle `60^@` . If the reflected and refracted rays are perpendicular to each other, the refractive index of the glass is,

A

`sqrt3`

B

`3//2`

C

`sqrt((3//2))`

D

`1//2`

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The correct Answer is:
A
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