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).
(d) : According to Brewster'* law of polarization, n = taniP where ip is angle of incidence Therefore, ip = tan–1(n).
