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Use Planck’s radiation law to derive the Stefan-Boltzmann

  1. Jan 23, 2013 #1
    1. The problem statement, all variables and given/known data

    a) Use Planck’s radiation law to derive the Stefan-Boltzmann law for the case of zero background
    temperature (i.e., T0 = 0).


    2. Relevant equations
    http://csep10.phys.utk.edu/astr162/lect/light/plancklaw.gif


    3. The attempt at a solution

    So I know we are suppose to integrate over all wavelength but I dont' know what should the limit be
     
  2. jcsd
  3. Jan 23, 2013 #2

    cepheid

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    Gold Member

    Well, what do you think ALL possible wavelengths means? What is the shortest possible wavelength? (Hint: it can be made arbitrarily short). What is the longest possible wavelength? (Hint: it can be made arbitrarily long).
     
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