Question

When light enters from air to glass, the angles of
incidence and refraction in air and glass are 45c
and 30c respectively. The refractive index of glass is

Answer 1

Explanation:

$n _{ga} = \frac{ \sin(i) }{ \sin(r ) } = \frac{ \sin(45) }{ \sin(30) }$

$n _{ga} = \frac{1 \sqrt{2} }{ \frac{1}{2} } = \sqrt{2} = 1.41$

$answer \: = 1.41$