Question 390: Properties of Matter

Question

A black body is at 727
o
C. It emits energy at a rate which is proportional to

Accepted Answer

According to StefanÃ¢ÂÂs law, rate of energy radiated $$E \propto {T^4}$$
where T is the absolute temperature of a black body.
$$ 	herefore E \propto {\left( {727 + 273} ight)^4} \Rightarrow E \propto {\left[ {1000} ight]^4}$$

Answer

(1000)
4

Answer

(1000)
2

Answer

(727)
4

Answer

(727)
2

Properties of Matter

A black body is at 727 o C. It emits energy at a rate which is proportional to

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