Question
(a) How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a polaroid gets polarized?
(b) A beam of unpolarised light is incident on a glass-air interface. Show, using a suitable ray diagram, that light reflected from the interface is totally polarised, when μ=taniB, where μ is the refractive index of glass with respect to air and iB is the Brewster's angle.