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

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

1

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ComplexInfinity

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5

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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/

3

m

λ

max

-3

10

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

λ

max

E

B

W/

2

m

E

B

4

T

σ=5.676×W/

-8

10

2

m

4

K