Black Body 1


Black Body 1 :

(Symb: subscript b) An ideal energy emitter or absorber that radiates or absorbs the maximum energy per unit area at each wave-length for any temperature. Experimental black bodies are hollow cylinders with blackened interiors. Radiation entering a slit in the cylinder is almost completely absorbed by multiple reflections. Radiation exiting from the slit is approximately black body distribution, sometimes called cavity radiation or total absorption. See also: Gray Body. Also called: Total Absorber

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