Emissivity meaning

ĕmĭ-sĭvĭ-tē
Frequency:
The ratio of the radiation emitted by a surface to the radiation emitted by a blackbody at the same temperature.
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The relative ability of a surface to radiate energy as compared with that of an ideally black surface under the same conditions.
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(physics) The energy-emitting propensity of a surface, usually measured at a specific wavelength.
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