Question

1. all electromagnetic waves travel at the speed of light (186,000 miles/sec). 1 pts. true false flag this question for later review

Explanation:

Electromagnetic waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X - rays, and gamma rays, all travel at the speed of light in a vacuum. The speed of light in a vacuum is approximately \(3\times10^{8}\text{ m/s}\) or \(186,000\) miles/sec.

Answer:

True