Question

A ray of light is incident on the surface of plate of glass of refractive index 1.5 at the polarising angle. The angle of refraction of the ray will be.

• A. ${33.7}^o$
• B. ${43.7}^o$
• C. ${23.7}^o$
• D. ${53.7}^o$

Answer 1

Answer: (A)

${33.7}^o$

If $i_p$ be the polarising angle, then
$tan{i}_p=\mu =1.5$
$i_p={56.3}^o$
Amgle of refraction, $r={90}^o-i_p$
$={90}^o-{56.3}^o={33.7}^o$