Show that for a plane wavefront passing from a medium of speed into another of speed

PHYSICS · Subjective · CBSE · Physics · Wave Optics · Wave Optics

Problem

Show that for a plane wavefront passing from a medium of speed

v_1

into another of speed

v_2

, the relation

\dfrac{\sin i}{\sin r}=\dfrac{v_1}{v_2}

holds, where

i

and

r

are the angles of incidence and refraction respectively.