what is perfectly black body? describe frey's black body radiation?
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hello mate
Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body).
Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body).
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it is a theoretically ideal radiator and absorber of energy at all electromagnetic wavelengths .the fur comes from the fact that a cold black body appears visual black.the energy emitted by a black body called black body radiation
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