Light travels slower in a lens having a
A)high index of refraction.
B)low index of refraction.
C)same in each

Question

Quizplus · Accepted Answer

Light travels slower in a medium with a higher index of refraction, and lenses are made of materials with high indices of refraction to effectively bend and focus light. Therefore, a lens with a high index of refraction will cause light to travel slower than in air or in a low-index material.

Light Travels Slower in a Lens Having a