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Is frequency quantized?

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  1. Aug 29, 2015 #1
    As to E=hf I understand that a energy can be arbitrary in order of proportional packages to given frequency. But is there any equation in quatum mechanics which imply a freq to be quantized?
    Thanks a lot!
     
  2. jcsd
  3. Aug 29, 2015 #2

    Nugatory

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    Staff: Mentor

    If ##E## can only take on discrete values, then ##E=hf## obviously implies that ##f## can only take on discrete values as well.

    However, whether ##E## is limited to discrete values or not depends on the system. For example, a bound electron is limited that way but an unbound one is not.
     
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