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Colour Theory
Colours would not be possible to see without light because colour is light either reflected off of objects we see or viewed directly from the light source. When light is passed through a prism, the light beam bends and the wavelengths are separated, causing the prism to produce the colors of the electromagnetic spectrum. Each color has its own wavelength. Infrared, microwave, radio, television and electrical power have lower frequencies than visible light, and ultraviolet, X-rays and gamma rays have higher frequencies.
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