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Two Stefan Boltzmann Laws

  1. Apr 24, 2012 #1
    In Reif's book Fundamentals of Statistical and Thermal Physics, he labels two formulas as the Stefan-Boltzmann Law. They are both involve T^4 but the constant is different. In one, on page 376, the law is given as (pi2/15)*(kT)4/(c*hbar)3.

    The other, on page 388, is (pi2/60)*(kT)4/(c2*hbar3).

    The second formula is c/4 times the first.

    I have looked carefully through the text and I can't see why there should be a difference. What have I overlooked?
  2. jcsd
  3. Apr 25, 2012 #2


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  4. Apr 25, 2012 #3
    Thanks much! I just checked and I think you are right.
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