How does the speed of light in glass compare to the speed of light in a vacuum?
A)It is larger in glass
B)It is larger in a vacuum
C)Trick question,light can't travel in glass
D)They are the same

Question

Quizplus · Accepted Answer

The speed of light in a vacuum is the maximum speed at which light can travel, and it is faster than the speed of light in any medium, including glass. Light slows down when it passes through materials like glass due to interactions with the material's atoms.

How Does the Speed of Light in Glass Compare to the Speed