

MCQOPTIONS
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1. |
A spherical body of area A and emissivity e = 0.6 is kept inside a perfectly black body. Energy radiated per second by the body at temperature T is ___________ |
A. | 0.4σAT4 |
B. | 0.8 σAT4 |
C. | 0.6 σAT4 |
D. | 1.0 σAT4 |
Answer» D. 1.0 σAT4 | |