When a light wave in air reflects from a flat surface whose index of refraction is…
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
When a light wave in air reflects from a flat surface whose index of refraction is greater than that of air, which of the following best describes the phase change that the reflected wave experiences?
(a) The reflected wave undergoes no phase shift.
(b) The reflected wave undergoes a phase shift that depends on its wavelength.
(c) The reflected wave undergoes a 180∘ phase shift.
(d) The reflected wave undergoes a 90∘ phase shift.