When unpolarised light beam is incident from air onto glass (`n=1.5`) at the polarising angle

Options

A. reflected beam is polarised 100 %
B. reflected and refracted beams are partially polarised
C. the reason for (a) is that almost all the light is reflected
D. All of the above

Answer

A

Explanation

If unpolarised light is incident at polarising angle, then reflected light is completely, i.e. 100% polarised.