Rankers Physics
Topic: Thermal Physics

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, $E \propto (1000)^4$.

Leave a Reply

Your email address will not be published. Required fields are marked *