What are electromagnetic waves?
Aryanna Blake
Answered question
2022-10-16
Answer & Explanation
Warkallent8
Beginner2022-10-17Added 16 answers
EM waves, as I shall call them are basically perpendicularly oscillating electric and magnetic fields propagating in space.
Their velocity in a particular medium is determined thus by the electrical and magnetic properties of the medium.
In vacuum, they propagate with a velocity approximately given as
In presence of material medium their velocity is smaller than this and is given as where is the electrical permittivity and is the magnetic permeability.
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