Total internal reflection is an optical phenomenon in which a light ray is completely reflected under certain conditions.
Total internal reflection is discovered in the year 1611 by Johannes Kepler.
Condition of total internal reflections.
1. The light rays must travel from a denser medium (medium of high refractive index) to the rare medium (medium of low refractive index).
2. The angle of incidence must be greater than the critical angle.
This is the illustration diagram of Total internal reflection.
