A ray of light enters from air into a transparent medium and bends towards the normal
PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A ray of light enters from air into a transparent medium and bends towards the normal. Which statement best explains this behaviour?
(a) The speed of light remains unchanged inside the medium while its wavelength decreases due to the higher refractive index.
(b) The speed of light decreases inside the medium because its refractive index is greater than that of air.
(c) The wavelength of light increases inside the medium because its refractive index is greater than that of air.
(d) Both the speed and frequency of light decrease inside the medium as it loses energy entering a denser medium.