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blackbody radiation

From , former About.com Guide

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Definition: blackbody radiation: Blackbody radiation is produced by an object which is a perfect absorber of heat. Perfect absorbers must also be perfect radiators. For a blackbody at a temperature T, the intensity of radiation emitted I at a particular energy E is given by Plank's law:

    I(E,T) = 2 E3[h2c2(eE/kT - 1)]-1
where h is Planck's constant, k is Boltzmann's constant, and c is the the speed of light.

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