Question
In: Physics
Using Maxwell's equations and the variety of forms, how do you think that such a wave...
Using Maxwell's equations and the variety of forms, how do you think that such a wave can self-propogate without a constant source of radiation?
Solutions
Expert Solution
Electromagnetic radiation (EM radiation or EMR) is a fundamental
phenomenon of electromagnetism, behaving as waves propagating
through space, and also as photon particles traveling through
space, carrying radiant energy. In a vacuum, it propagates at a
characteristic speed, the speed of light, normally in straight
lines. EMR is emitted and absorbed by charged particles. As an
electromagnetic wave, it has both electric and magnetic field
components, which oscillate in a fixed relationship to one another,
perpendicular to each other and perpendicular to the direction of
energy and wave propagation
The electromagnetic waves that compose electromagnetic radiation can be imagined as a self-propagating transverse oscillating wave of electric and magnetic fields. This diagram shows a plane linearly polarized EMR wave propagating from left to right. The electric field is in a vertical plane and the magnetic field in a horizontal plane. The two types of fields in EMR waves are always in phase with each other with a fixed ratio of electric to magnetic field intensity.
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