Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at
A) the same speed.
B) different speeds.
C) light travels at the same speed everywhere.

Question

Quizplus · Accepted Answer

In a vacuum, all colors of light travel at the same speed, which is the speed of light, approximately 3.00 x 10^8 meters per second. This is a fundamental principle of physics as described by Einstein's theory of relativity.

Different Colors of Light Travel at Different Speeds in a Transparent