what do you understand by black body radiation?
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Black-body radiation is the type of electromagnetic radiation within or surrounding a body in thermodynamic equilibriumwith its environment, or emitted by a black body (an opaque and non-reflective body) held at constant, uniform temperature. The radiation has a specific spectrum and intensity that depends only on the temperature of the body
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The electromagnetic radiation that a perfect blackbody would give off at a given temperature.
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