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4 September, 06:41

3. The light given off by an electric discharge through sodium vapor is

O of a single wavelength

O an emission spectrum

O a continuous spectrum

O white light

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Answers (2)
  1. 4 September, 07:19
    0
    An emission spectrum.

    Explanation:

    An element's emission spectrum is the intensity of the electromagnetic radiation of each frequency emitted by the atoms of that element during excitation. In the case of sodium vapor, when the vapor is excited by an applied voltage or an electric force or field, the atoms in the vapor emits a light spectrum.
  2. 4 September, 09:03
    0
    Answer: an emission spectrum
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