Reference Terms
from Wikipedia, the free encyclopedia


Spectroscopy is the study of spectra, that is, the dependence of physical quantities on frequency.

Spectroscopy is often used in physical and analytical chemistry for the identification of substances, through the spectrum emitted or absorbed.

Note:   The above text is excerpted from the Wikipedia article "Spectroscopy", which has been released under the GNU Free Documentation License.
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October 8, 2015

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updated 12:56 pm ET