Radiation

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Speed of Light

 , where:

c = Speed of Light (m/s)

Stefan-Boltzmann Constant

The Stefan-Boltzmann law formula is as follows, it is applied in numerous examples in radiation and can be easily calculated and derived:

 , where:

 = Stefan-Boltzmann Constant (W/(K4*m2))

Stefan-Boltzmann Law

 , where:

j* = Radiant Flux (W/m2)

 = Stefan-Boltzmann Constant (W/(m2*K))

T = Temperature (K)

Wien's displacement constant

Wien's displacement constant for a black body (b), which originates from Wien's displacement law, is defined as below.   Note the SI units of the constant (m*K, where K is the color temperature)

 , where:

b = Wien's displacement constant (m*K)

Wien's Displacement Law

Wien's displacement equation is derived and calculated to the below (b/T) for a black body.  Note the SI units of the constant (m*K, where K is the color temperature):

 , where:

 = Wavelength of peak emmission for a black body (m)

b = Wien's displacement constant (m*K)

T = Temperature of Body (K) - Color Temperature

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