Planck's radiation law
PlancksRadiationLaw
2004-11-20 15:11:07
2008-04-10 20:14:46
Law
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The spectral radiance of a black body is given by:
\begin{equation}
I(\lambda,T) = \frac{ 2 h c^2}{\lambda^5} \, \frac{1}{e^{hc/ \lambda kT} - 1}
\end{equation}
It can also be given as a function of frequency:
\begin{equation}
I(\nu,T) = \frac{2 h \nu^3}{c^2} \, \frac{1}{e^{hc/ \lambda kT} - 1}
\end{equation}