A light wave is incident normally on a glass slab of refractive index 1.5
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
A light wave is incident normally on a glass slab of refractive index 1.5. If 4% of light gets reflected and the amplitude of the electric field of the incident light is 30 V/m , then the amplitude of the electric field for the wave propagating in the glass medium will be:
(1) 30 V/m
(2) 10 V/m
(3) 24 V/m
(4) 6 V/m