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Change of momentum of photon upon reflection

  1. Apr 6, 2009 #1
    1. What is the change in momentum of a photon when it bounces off a mirror?
    (assuming it's a perfect mirror)

    My guess is that it's [tex]2h/\lambda[/tex]. But i think it should be more complex than this.
  2. jcsd
  3. Apr 6, 2009 #2


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    You're guess is correct.

    I suspect it was more than a guess, and that you are actually thinking about it correctly! :smile:
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