Critical angle for a certain medium is $\sin ^{-1}(0.6)$. The polarizing angle of that medium is

The angle of incidence at which reflected light is completely polarized for reflection from air to a medium of refractive index $n$ is:

Explain the polarisation of light by reflection,state Brewster's law,and derive its formula.

When the angle of incidence is $60^{\circ}$ on the surface of a glass slab,it is found that the reflected ray is completely polarized. The velocity of light in glass is

$A$ ray of light strikes a glass plate at an angle of $60^{\circ}$. If the reflected and refracted rays are perpendicular to each other, the refractive index of glass is

$A$ ray of light is incident on a transparent glass slab of refractive index $1.62$. The reflected and the refracted rays are mutually perpendicular. The angle of incidence is.......$^o$