Electromagnetic radiation travels how fast

Explanation: , kilometer per second is the speed of electro magnetic radiation. Related questions Does electromagnetic radiation travel in waves? What are some electromagnetic waves that are lower than visible light?

What is the frequency of a electromagnetic wave with a wavelength of 1. What are the longest and shortest visible electromagnetic waves that humans experience? Do all stars radiate heat energy, light energy, and electromagnetic waves? Some types of electromagnetic waves, like radio waves, microwaves, infrared waves, visible light and ultraviolet waves, can be reflected and refracted.

Refraction is caused by differences in the velocity of waves travelling through different substances. Electromagnetic waves form a continuous spectrum of waves. This includes:. Electromagnetic waves can be separated into seven distinct groups in the spectrum. The speed of light is a little less than , km per second. At that speed, a beam of light could go around the Earth at the equator more then 7 times in a second. The reason that it takes so long for radio messages to travel in space is that space is mind-bogglingly big.

The distances to be traveled are so great that even light or radio waves take a while getting there. It takes around eight minutes for radio waves to travel from the Earth to the Sun, and four years to get from here to the nearest star.