EM waves in a vacuum travel at a speed
A) of c.
B) varying with their wavelength.
C) varying with their intensity.
D) of 299,792,458 m/s.

Name: EM waves in a vacuum travel at a speed A) of c. B) varying with their wavelength. C) varying with their intensity. D) of 299,792,458 m/s.
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Question

Quizplus · Accepted Answer

Electromagnetic (EM) waves in a vacuum travel at a constant speed, denoted as "c," which is exactly 299,792,458 meters per second. This speed is independent of the wavelength or intensity of the waves.

EM Waves in a Vacuum Travel at a Speed