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Homework Help: Energy transition

  1. Dec 5, 2007 #1
    1. The problem statement, all variables and given/known data
    My calculations indicate that the 2->1 transition in deuterium is lower energy than the 2->1 transition in hydrogen. I think I am making a mistake, does anyone know whether that is true? Is there a reference I can check?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Dec 6, 2007 #2
  4. Dec 6, 2007 #3
    What exactly is given at that site? Is that 1 over the wavelength of the emitted photon? Why would they not just give the actual wavelength?
  5. Dec 6, 2007 #4
  6. Dec 6, 2007 #5
    They give E/(hc), which has units 1/length.
  7. Dec 6, 2007 #6
    So, the inverse of that is the wavelength in cm, right?
    Also, why do you need to input the orbital angular momentum quantum number and the total angular momentum quantum number?
    I thought the transition energy only depended on n?
  8. Dec 6, 2007 #7

    Only in your first class in quantum mechanics :wink:
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