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Electromagnetic waves were first postulated by James Clerk Maxwell and subsequently confirmed by Heinrich Hertz. Maxwell derived a wave form of the electric and magnetic equations, revealing the wave-like nature of electric and magnetic fields, and their symmetry. Because the speed of EM waves predicted by the wave equation coincided with the measured speed of light, Maxwell concluded that light itself is an EM wave. According to Maxwell's equations, a time-varying electric field generates a magnetic field and vice versa. Therefore, as an oscillating electric field generates an oscillating magnetic field, the magnetic field in turn generates an oscillating electric field, and so on. These oscillating fields together form an electromagnetic wave. A quantum theory of the interaction between electromagnetic radiation and matter such as electrons is described by the theory of quantum electrodynamics.

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10y ago
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15y ago

Magnetism produced by electricity. Includes: invisible light and visible light.

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Q: What is the definition of electromagnetic wave?
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Is light considered a electromagnetic wave?

Light is said to be of dual nature so it has particle nature as well as wave nature but there is a difference in waves and electromagnetic waves. so ,as for your question "Is light a electromagnetic wave" the answer is "no"More precisely, if visible is not an electromagnetic wave, the NO part of the electromagnetic spectrum could be considered to be an electromagnetic wave. By any definition of the term, the answer is 'Yes'


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