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Electromagnetic Spectrum:
Electromagnetic waves exist in a wide range of frequencies. The range of frequencies is referred to as the electromagnetic spectrum. The spectrum of electromagnetic waves is subdivided into regions - each with its own name. Many of the regions of the electromagnetic spectrum have familiar names such as microwave, X-rays, ultraviolet, visible light, infrared, radio, and gamma radiation. The different regions are typically arranged in order of increasing frequency (or in order of increasing wavelength).
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If you are not familiar with the electromagnetic spectrum and the arrangement of regions in order of their frequency and wavelength, then click the link in the Hot Link section. A graphical display of the spectrum will appear. The answer to this question will be quickly found.
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