Question

At what angle of incidence should a light beam strike a glass slab of refractive index root 3,such that the reflected and refracted rays are perpendicular to each other

Answer 1

at least 90degrees to be perpendicular

Answer 2

Answer:

At Brewster's Angle

$\tan \: alpha = u$

alpha - incident Angle

ip = 60°

You Know tan60° = √3

Explanation:

Thanks for Reading

Hope Helps You