Question

Refer to the figure above. Suppose that an electron makes a transition from n = 3 to n = 2 and emits a photon of frequency 4 1014 Hz. Then an electron that makes a transition from n = 3 to n = 1 may emit a photon with a frequency of
1) 1 1014 Hz,
2) 3 1014 Hz,
3) 4 1014 Hz,
4) 9 1014 Hz,
which is consistent with emission of the most energetic photon from a transition from n = 3 to
5) n = 1.
6) n = 2.
7) either, as both transitions are equivalent.

Answer

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