A ray of light is incident on a glass plate at 60^@. The reflected and refracted rays are found to be mutually perpendicular. The refractive index of the glass is :

A ray of light is incident on a glass plate at 60^@. The reflected and

1.	A ray of light is incident on a glass plate at 60^@. The reflected and refracted rays are found to be mutually perpendicular. The refractive index of the glass is :
Answer» 2.25 1.73 1.5 1.15 Answer :B

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A ray of light is incident on a glass plate at 60^@. The reflected and refracted rays are found to be mutually perpendicular. The refractive index of the glass is :

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