Definition on Wikipedia: A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Spectral lines are often used to identify atoms and molecules. These “fingerprints” can be compared to the previously collected “fingerprints” of atoms and molecules. … Continue reading What Does Spectral Line Mean? What Are Emission And Absorption Lines?
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