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Homework Help: Problems of Spontaneous Emission, thanks.

  1. Oct 6, 2014 #1
    How to change the upper step to lower step on the figure?
    Why does N2(0) change to N2(t) the exp(-t/21) will be missed?
    Thanks. Step.jpg
  2. jcsd
  3. Oct 6, 2014 #2


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    No idea. Not telepathic. you know. No magic either.
    What's this about ? Use the template to let potential helpers know.
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