"""A ray of light is incident on a transparent glass slab of refractive index `sqrt3`. If the reflected and refracted rays are mutually perpendicular, what is the angle of incidence? <br> <img src=""""https://d10lpgp6xz60nq.cloudfront.net/physics_images/BMS_V04_C01_S01_030_Q01.png"""" width=""""80%"""">"""
{}