What's the difference between mechanical wave &so called electromagnetic wave in space arent they both waves?

Answer 1

A mechanical wave needs a medium to propagate through, such as a gas, liquid, or solid. Electromagnetic waves, such as light, do not. In a sense, they are their own medium.

Answer 2

Since the question has already been answered by others, here's an example to help you visualize it:

Mechanical waves: Waves (sea water) hitting the beach. Audible Sound - you can hear better when you're underwater since water is a better conducting medium. Remember you childhood game of talking/listening with two cans attached by a string.
Electromagnetic waves: Radio, microwaves, visible light, X-rays.

Answer 3

This question was answered correctly and previously.
In short, the frequency and wave length differ. E&M wave has higher frequency than those of sound wave, water wave, etc.

Answer 4

mechanical waves r waves that need a medium to tavel through like sound waves. but electomagnetic waves r waves that dont need a medium to travel through like light and ultravilote waves.. and off-course electromagetic waves r extremly fast in space