(a) How does one demonstrate, using a suitable diagram, that unpolarised light when passed
Channel: Doubtnut
Date: 2020-01-19

(a) How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a Polaroid gets polarised? (b) A beam of unpolarised light is incident a glass-air interface. Show using a suitable ray diagram, that light reflected from the interface is totally polarised, when `mu=tani_(B)`, when `mu` is the refractive index of glass with respect to air and `i_(B)`, is the Brewster\'s angle.