Question

In accordance with Kirchhoff's law for a black body radiation, which one is wrong?Bad absorber is a bad emitter
Bad reflector is a good emitter Bad emitter is a good absorber
Bad reflector is a gooabsorber

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Answer 1

Answer:

A perfect black body in thermodynamic equilibrium absorbs all light that strikes it, and radiates energy according to a unique law of radiative emissive power for temperature T, universal for all perfect black bodies. Kirchhoff's law states that: ... That universal function describes the perfect black-body emissive power.