Question

Answer this question plz​

Answer 1

Answer:

(2) 40.5 J

Explanation:

Energy radiated by a black body is proportional to fourth power of the temperature.

Hence, the energy radiated at 627 °C (900 K ) would be

${( \frac{300}{900}) }^{4} = \frac{0.5}{energy \: at \: 900 \: k}$

$\frac{1}{81} = \frac{0.5}{e} \\ = > e = 81 \times 0.5 \\ = > e = 40.5$

Thanks for the question