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Q. |
The net radiant interchange per square metre for two large parallel planes at temperatures of 1000?K and 100?K respectively, would be roughly |
A. | 240 kcal/hr |
B. | 75 kcal/hr |
C. | 25 kcal/hr |
D. | 480 kcal/hr |
E. | 120 kcal/hr |
Answer» C. 25 kcal/hr |
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