A ray of light moves from air into water. Which path most accurately shows the refraction?
A) A
B) B
C) C
D) D
E) E

Question

A ray of light moves from air into water. Which path most accurately shows the refraction? 
A) A 
B) B 
C) C 
D) D 
E) E

Quizplus · Accepted Answer

When light travels from a medium of lower refractive index (air) to a medium of higher refractive index (water), it bends towards the normal, as shown in path C. This is because the speed of light decreases in water as compared to air, and thus the wavelength decreases and the frequency remains constant.

A Ray of Light Moves from Air into Water