A ray of monochromatic light is incident on one refracting face of a prism of angle `75^(@)`
Channel: Doubtnut
Date: 19/01/2020

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