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1. |
The electromagnetic energy emitted by a perfect radiator corresponding to a temperature T and surface area A is? |
A. | AσT4Δt, in unit time Δt |
B. | AeσT4Δt, in unit time Δtc) Ae4 |
C. | Ae4 c) AeσT4 |
D. | AσT4 |
Answer» B. AeσT4Δt, in unit time Δtc) Ae4 | |