The polarising angle for water is $53^\circ 4'$. If light is incident at this angle on the surface of water and reflected, the angle of refraction is:

Choose the correct statement from the following. Brewster's angle for a transparent medium is

When an unpolarised light beam is incident from air onto glass $(n = 1.5)$ at the polarising angle:

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

$A$ beam of light $AO$ is incident on a glass slab $(\mu = 1.54)$ in a direction as shown in the figure. The reflected ray $OB$ is passed through a Nicol prism. On viewing through the rotating Nicol prism,we find that $(\tan 57^{\circ} = 1.54)$.

When a light ray is incident on the surface of a medium,the reflected ray is completely polarized. Then the angle between the reflected and refracted rays is (in $^{\circ}$)