ABSTRACT
The electromagnetic spectrum is the distribution of electromagnetic radiation according to frequency or wavelength. All electromagnetic waves travel at the speed of light in a vacuum, but they do so at a wide range of frequencies, wavelengths, and energies. The electromagnetic spectrum comprises the span of all electromagnetic radiation and consists of subranges, such as visible light or ultraviolet radiation. The various portions bear different names based on differences in behavior in the emission, transmission, and absorption of the corresponding waves and also based on their different applications. There are no precise accepted boundaries between any of these contiguous portions, so the ranges tend to overlap. The Electromagnetic Spectrum https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429277948/ace92e0f-2c47-464c-be58-48712ae89f8e/content/fig6_1.tif"/>
