A ray of unpolarised light is incident on a glass plate at the polarizing angle if incident `57^@`. Now,

Options

A. (a) the reflected and transmitted ray would be partially polarized
B. (b) the reflected ray is completely polarized and the transmitted ray would be partially polarized
C. (c) both the reflected and transmitted rays are completely polarized
D. (d) the reflected ray is partially polarised while transmitted ray is completely polarized

Answer

B

Explanation

According to Brewster's experiment if light is incident on a transparent surface, the reflected light is completely polarized and the transmitted light is partially polarized if angle of incidence is related to refractive index of material of transmitted medium. `tan i=mu`, is the Brewter's law.
For glass `i=tan^-1(3/2)=57^@`