When unpolarised light passes from air to a transparent medium

cbse
waveoptics

#1

When unpolarised light passes from air to a transparent medium, under what condition does reflected light get polarised?


#2

It happens when angle of incidence is equal to
polarising angle falling on a transparent surface, then reflected light is completely polarised. In this situation, refractive index of refracting surface. Also, the reflected and refracted light waves are mutually perpendicular to each other.