A ray of light is incident on the surface of a glass plate at an angle of incidence equal to Brewster's angle `phi`. If `mu` represents the refractive index of glass with respect to air, then the angle between reflected and refracted rays is

Options

A. `(90+pi)`
B. `sin^-1(mu cos phi)`
C. `90^@`
D. `sin^-1(( sin phi)/mu)`

Answer

C