Question

How does electromagnetic waves travel through a vacuum?

Answer 1

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space. ... This proved that radio waves were a form of light!

Answer 2

Answer:

The propagation of electromagnetic waves either in a certain medium or in vacuum is due the the mutual changes between the electric and magnetic field. ... These variations in electric and magnetic fields fields lead to the transfer of the energy which is carried by the EM wave

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