Question

When red light in vacuum is incident at the Brewster angle on a certain glass slab, the angle of refraction is 28.2

Answer 1

Brewster's angle (also known as the polarization angle) is an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection

angle of incidence + angle of refraction = 90

angle of incidence = 90- angle of refraction

angle of incidence = 90- 28.2 = 61.8

angle of incidence = Brewster's angle = 61.8

tan _B= n2/n1

1.86 =