Jee Main
Geometrical Optics
JEE Main 2021 (Online) 25th July Morning Shift
MCQ+4 / -12021
A ray of laser of a wavelength 630 nm is incident at an angle of 30\(^\circ\) at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is 2.42 and that of air is 1. Choose the correct option.