6) Why do electromagnetic waves not require a medium for travel?

Electromagnetic waves are a type of

transverse wave. This wave does not

require media for travel. As the name

implies a wave, these waves indicate

electrical and magnetic properties. No

cost whatsoever happened to the wave. Electromagnetic waves work with the

laws of reflection and refraction. They

travel the straight line in a vacuum at a

speed of 3 x 108 ms-1. The intensity of

electromagnetic waves depends on the

strength of the electric field.