The refractive index of a medium is equal to the tangent of the polarizing angle. This is known as:

$A$ 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.......$^o$

For a given medium,the polarizing angle is $60^{\circ}$. The critical angle for this medium is . . . . . .

Unpolarized light of intensity $I_0$ is incident on the surface of a block of glass at Brewster's angle. In that case,which one of the following statements is true?

$A$ parallel beam of monochromatic unpolarised light is incident on a transparent dielectric plate of refractive index $\mu = \sqrt{3}$. The reflected beam is completely polarised. Then the angle of incidence is....$^o$

Select the correct statement.