The good absorber of heat is
Question and options
The good absorber of heat is
- non-emitter
- poor-emitter
- good-emitter
- highly polished
Answer and explanation
Correct answer: C - good-emitter
By Kirchhoff's law of radiation, a body's emissivity equals its absorptivity at a given temperature, so a good absorber of heat is also a good emitter. Highly polished surfaces reflect heat and are poor absorbers.
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