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Which of the following best explains why electromagnetic waves of all wavelengths have the same speed in a vacuum?
A
All electromagnetic waves have the same stiffness and wave speed is proportional to stiffness.

B
All electromagnetic waves have the same manner of propagation; alternating electric and magnetic fields.

C
Why all electromagnetic waves have the same speed was explained by Einstein's theory of relativity.

D
Actually light is the fastest electromagnetic wave, followed by X-rays and then radio waves.

Sagot :

All electromagnetic waves have the same manner of propagation; alternating electric and magnetic fields that's why electromagnetic waves of all wavelengths have the same speed in a vacuum

An altering magnetic field will cause an altering electric field and vice versa. Electromagnetic waves are created from these shifting fields. In contrast to mechanical waves, electromagnetic waves can travel without a medium. The oscillations between an electric field and a magnetic field produce waves known as electromagnetic waves or EM waves.

In other words, magnetic and electric fields oscillate to form electromagnetic (EM) waves. Almost the majority of the energy that sustains life on our planet comes from electromagnetic waves that flow from the sun to Earth through space. Technology is a necessity for many additional electromagnetic wave sources. Examples include X-rays, radio waves, and microwaves.


To learn more about electromagnetic waves please visit -
https://brainly.com/question/3101711
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