The energy emitted per second by a black body at 27^∘C is 10  J. If the temperature of the black ...

Описание: The energy emitted per second by a black body at 27^∘C is 10  J. If the temperature of the black body is increased to 327^∘C, the energy emitted per second will be
[CPMT 1999; DCE 1999; Similar KCET 2008]
(a) 20  J
(b) 40  J
(c) 80  J
(d) 160  J

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