Rankers Physics

Thermal Physics: Practice Problem & Solution

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 Explained:

To solve this problem, we apply the core principles of Thermal Physics. Understanding the underlying formula is key to arriving at the correct answer below:

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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