Absorptivity and reflectivity of a perfect black body are respectively _______________?
Correct answer: A. 1 and 0
- A. 1 and 0
- B. 0 and 1
- C. 1 and ∞
- D. 0 and 0.5
Explanation
A perfect black body absorbs all incident radiation and reflects none, so its absorptivity is 1 and reflectivity is 0. This follows from the ideal black-body definition.
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