The angle of incidence at which reflected light is totally polarised for reflection from air to glass (refractive index n),

Question

The angle of incidence at which reflected light in totally polarized for reflection from air to glass (refractive index n), is

(a) sin^–1(n) 

(b) sin^–1(1/n)

(c) tan^–1(1/n) 

(d) tan^–1(n).

Answer 1

Correct Option (d) tan^–1(n).

Explanation:

The particular angle of incidence for which reflected light is totally polarised for reflection from air to glass, is called the angle of polarisation (i_p) or Brewster's law.

where, n is refractive index of glass.