Electromagnetic Radiation Sources
Electromagnetic radiation refers to the energy transmitted through space or through a material medium in the form of electromagnetic waves. The term can also refer to the emission and propagation of such energy.
Whenever an electric charge oscillates or is accelerated, a disturbance characterized by the existence of electric and magnetic fields propagates outward from it. This disturbance is called an electromagnetic wave. The frequency range of such waves is tremendous, as is shown by the electromagnetic spectrum in the table below.
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Electromagnetic radiation sources include:
Last Updated: July 15, 2011