A black body is at $727^{\circ}\text{C}$. It emits energy at a rate which is proportional to (2007)$(1000)^4$$(1000)^2$$(727)^4$$(727)^2$Solution:According to Stefan's law, $E \propto T^4$. Here $T = 727 + 273 = 1000 \text{ K}$. Therefore, $E \propto (1000)^4$.
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