A ray of light is incident on the surface of a glass plate at an angle of incidence equal to Brewster's angle \[\varphi \]. If \[\mu \] represents the refractive index of glass with respect to air, then the angle between reflected and refracted rays is [CPMT 1989]

\[{{90}^{o}}-{{\sin }^{-1}}(\sin \varphi /\mu )\]

\[{{\sin }^{-1}}(\mu \cos \varphi )\]

\[{{90}^{o}}-{{\sin }^{-1}}(\sin \varphi /\mu )\]

A ray of light is incident on the surface of a glass plate at an angle

1.	A ray of light is incident on the surface of a glass plate at an angle of incidence equal to Brewster's angle \[\varphi \]. If \[\mu \] represents the refractive index of glass with respect to air, then the angle between reflected and refracted rays is [CPMT 1989]
A.	\[90+\varphi \]
B.	\[{{\sin }^{-1}}(\mu \cos \varphi )\]
C.	90o
D.	\[{{90}^{o}}-{{\sin }^{-1}}(\sin \varphi /\mu )\]
Answer» D. \[{{90}^{o}}-{{\sin }^{-1}}(\sin \varphi /\mu )\]