A ray of monochromatic light is incident on the refracting face of a prism (angle `75^(@)0` .
Channel: Doubtnut
Date: 26/07/2020

A ray of monochromatic light is incident on the refracting face of a prism (angle `75^(@)0` . It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the prism is `sqrt(2)` , then the angle of incidence on the first of the prism is