Talk:PlanetPhysics/Planck's Radiation Law
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[edit source]%%% This file is part of PlanetPhysics snapshot of 2011-09-01 %%% Primary Title: Planck's radiation law %%% Primary Category Code: 05.70.Ce %%% Filename: PlancksRadiationLaw.tex %%% Version: 7 %%% Owner: bloftin %%% Author(s): bloftin, invisiblerhino %%% PlanetPhysics is released under the GNU Free Documentation License. %%% You should have received a file called fdl.txt along with this file. %%% If not, please write to gnu@gnu.org. \documentclass[12pt]{article} \pagestyle{empty} \setlength{\paperwidth}{8.5in} \setlength{\paperheight}{11in}
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The spectral radiance of a black body per unit \htmladdnormallink{solid}{http://planetphysics.us/encyclopedia/CoIntersections.html} angle 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 \htmladdnormallink{function}{http://planetphysics.us/encyclopedia/Bijective.html} of frequency: \begin{equation} I(\nu,T) = \frac{2 h \nu^3}{c^2} \, \frac{1}{e^{hc/ \lambda kT} - 1} \end{equation}
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