Blackbody radiation

rookie1010

Senior member
Mar 7, 2004
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if a blackbody gives of light in the form of photons, then how can it still be considered to be a blackbody?

does a blackbody convey em energy into photonic energy, but then does not light have a dual nature (packet and wave). i am confused.
 

Hayabusa Rider

Admin Emeritus & Elite Member
Jan 26, 2000
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A black-body is named such because not only is it a perfect radiator, it also is a perfect absorber of radiation. If such a thing existed it would be utterly dark when cold. For simplicity, many things are treated as if they were black body radiators in calculations.
 

rookie1010

Senior member
Mar 7, 2004
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thanks for the reply,

so it is a perfect radiator and a perfect absorber of radiation.

are these phenomena not contradictory. perfect radiator and perfect absorber at the same time?