The speed of ultraviolet radiation in free space compared with the speed of visible radiation in free space is
A)very much greater.
B)a little greater.
C)the same.
D)a little less.
E)very much less.

Question

Quizplus · Accepted Answer

The speed of electromagnetic radiation (including UV and visible) in free space is approximately 3 x 10^8 m/s, which is the same for all types of electromagnetic radiation. Therefore, choice C is correct.

The Speed of Ultraviolet Radiation in Free Space Compared with the Speed