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The study of the interaction between matter and electromagnetic radiation as a function of the wavelength or frequency of the radiation is known as spectroscopy. It focuses on the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.