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1. |
If the emitted radiant energy is to be doubled, to what temperature surface of black body needs to be raised? Take radiant flux density as 11631.7 W/m 2. |
A. | 894.4 K |
B. | 200.4 K |
C. | 800.3 K |
D. | 600.4 K |
Answer» E. | |