A ray incident on a water droplet at an angle of incidence undergoes two non-total…
PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
A ray incident on a water droplet at an angle of incidence i undergoes two non-total internal reflections and emerges. If the deviation suffered by the ray within the drop is minimum and the refractive index of the droplet is μ, show that cosi=8μ2−1.