MCQOPTIONS
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| 1. |
Absorptivity and reflectivity of a perfect black body are respectively _______________? |
| A. | 1 and 0 |
| B. | 0 and 1 |
| C. | 1 and ∞ |
| D. | 0 and 0.5 |
| Answer» B. 0 and 1 | |