Polarisation — Prelims Questions

Unpolarised light of intensity $I_0$ is incident on a polariser. The light transmitted through this polariser is then incident on a second polariser (analyser) whose transmission axis makes an angle of $60^circ$ with the transmission axis of the first polariser. What is the intensity of the light emerging from the second polariser?

Light is incident on a glass plate (refractive index $mu = 1.732$) at Brewster's angle. What is the angle of refraction for the light entering the glass?

Which of the following phenomena confirms the transverse nature of light waves?

Two polaroids are placed with their transmission axes parallel to each other. If unpolarised light of intensity $I_0$ falls on the first polaroid, what is the intensity of the light emerging from the second polaroid?

A beam of light is incident on a transparent medium of refractive index $mu$. If the reflected and refracted rays are mutually perpendicular, what is the angle of incidence?

Which of the following materials exhibits double refraction?