At what angle of incidence should a light beam strike a light beam strike a glass slab of refractive index `sqrt3`, such that the reflected and refracted rays are perpendicular to each other ?

Explanation

The reflected and the refracted rays are perpendicular to each other, when angle of incidence `i` is given by `n=tani_(p)`,
`because n=sqrt(3) ` hence `sqrt(3)=taini_(p)impliesi=60^(@)`.