When light enters a material of higher index of refraction, its speed
A)decreases.
B)first increases then decreases.
C)stays the same.
D)increases.
E)first decreases then increases.

Question

Quizplus · Accepted Answer

When light enters a material with a higher index of refraction, its speed decreases because the index of refraction is inversely related to the speed of light in the material.

When Light Enters a Material of Higher Index of Refraction