A ray of light in incident on a glass plate at an angle of `60^@`. What is the refractive index of glass if the reflected and refracted rays are perpendicular to each other?

Options

A. `(sqrt3)/3`
B. 1.5
C. 1.732
D. 2

Answer

C

Explanation

(c )
Refractive index of the material,
`µ=(sin i)/(sin r)=(sin 60^(@))/(sin 30^(@))=sqrt3=1.732`