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Photons emitted between energy levels?

  1. Apr 3, 2015 #1

    CAH

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    See photo attachment! (question 1(b) and see answer on mark scheme underneath)

    How can three photons be emitted? Either the electron drops down from 3 to 1 and skips 2 emitting one big 12.1 eV photon OR it falls down in step emitting two photons 1.9eV and 10.2eV. How can it emit more energy than its been given anyway?

    Thanks
     

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  2. jcsd
  3. Apr 3, 2015 #2

    DrClaude

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    Staff: Mentor

    The question is not well formulated. It isn't that a single collision with a single atom will give off three photons, but rather that following the collision three possible photon energies can be observed.
     
  4. Apr 3, 2015 #3

    CAH

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    Exactly what I thought, just cheaking... thanks
     
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