What are electromagnetic waves?

Aryanna Blake 2022-10-16 Answered
What are electromagnetic waves?
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Answers (1)

Warkallent8
Answered 2022-10-17 Author has 16 answers
Electromagnetic waves are non elastic waves in the sense that they don't really need a material medium for their propagation like sound waves do.
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 c = 3 10 8 m s 1
In presence of material medium their velocity is smaller than this and is given as v = ( ϵ μ ) 1 2 where ϵ is the electrical permittivity and μ is the magnetic permeability.
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