idk1230321
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  • 10-12-2018
  • Physics
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How does absorption spectra occur?

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Аноним Аноним
  • 10-12-2018

An absorption spectrum occurs when light passes through a cold, dilute gas and atoms in the gas absorb at characteristic frequencies; since the re-emitted light is unlikely to be emitted in the same direction as the absorbed photon, this gives rise to dark lines (absence of light) in the spectrum.

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