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14.Define electromagnetic waves. What is the sourceof electromagnetic wave ?2 |
Answer» <p>Definitionofelectromagnetic wave. : one of thewavesthat are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radiowaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.</p><p>Electromagnetic radiation, is a form of energy emitted by moving charged particles. As it travels through space it behaves like a wave, and has anoscillatingelectric field component and anoscillating magneticfield. These waves oscillate perpendicularly to and in phase with one another. </p> | |