Radio waves travel through space at what speed?
A) much faster than the speed of light
B) at the speed of light, 3 × 10⁸ m/s
C) much slower than the speed of light
D) slightly faster than the speed of light because their wavelength is longer

Question

Quizplus · Accepted Answer

Radio waves, like all electromagnetic waves, travel at the speed of light in a vacuum, which is approximately 3 × 10⁸ m/s. This is the maximum speed that any form of energy or information can travel in the universe. Therefore, option B is the correct answer.

Radio Waves Travel Through Space at What Speed