# Spectral Distribution of Total Energy Emitted by a Black Body versus Temperature

Spectral Distribution of Total Energy Emitted by a Black Body versus Temperature

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This Demonstration plots the monochromatic emissive power of a black body in at user-set values of the temperature (blue curve). The locus of the maximum values of the monochromatic emissive power (red curve) is given by Wien's displacement law:

W/m

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λT=2.89810mK

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The Demonstration also displays the value of as well as the total emissive power, (expressed in ), which is given by the Stefan–Boltzmann law:

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E=σT

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σ=5.676×10W/mK

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