Obtain the relation between critical angle and refractive index .

The expression relating polarising angle and refractive index is

A thin prism of angle 7^@ and refractive index 1.5 is combined with another prism of angle theta and refractive index 1.7. The emergent ray goes undeviated. What is the value of theta ?

If C is the critical angle for a medium and mu is its refractive index , then

A ray of light is incident normally on one of the faces of a prism of angle 30^@ and refractive index sqrt2 . The angle of deviation of the ray is

A ray of light is incident normally on one of the faces of a prism of angle 30^@ and refractive index sqrt 2 . The angle of deviation of the ray is