For an ideal black body______________________?
Correct answer: A. Absorptivity = 1
- A. Absorptivity = 1
- B. Reflectivity = 1
- C. Emissivity = 0
- D. Transmissivity = 1
Explanation
A black body absorbs all incident radiation, so its absorptivity is 1; correspondingly, its reflectivity and transmissivity are zero and its emissivity is 1. Thus only absorptivity = 1 matches the options.
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