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Spectroscopy
Spectroscopy is the study of the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. The matter can be atoms, molecules or ions. The nature of the interaction between radiation and matter may include – absorption, emission or scattering. It is the absorption, emission or scattering of radiation by matter that is used to quantitatively or qualitatively study the matter or a physical process. A study of the radiation absorbed or emitted by an atom or a molecule will give information about its identity and this technique is known as qualitative spectroscopy. Measurement of the total amount of radiation will give information about the number of absorbing or emitting ...
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