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A ray of light is lncident on a glass pl...

A ray of light is lncident on a glass plate at `60^(@)`. The reflected and refracted rays are found to be mutually perpe:ndiwlar. The refractive index of the glass is

A

`sqrt(3)/(2)`

B

`(1)/(2)`

C

`(1)/(sqrt3)`

D

`sqrt3`

Text Solution

Verified by Experts

The correct Answer is:
D

From the figure `i= 60^(@) and r= 30^(@)`
`therefore n = (sin i)/(sin r) = (sin 60^(@))/(sin 30^(@)) = ((sqrt3)/(2))/((1)/(2)) = sqrt3`
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