Physics

Physics

Problem

A surface with emissivity

0.60

emits thermal radiation at the rate of

1.2\,\text{kW m}^{-2}

. Using

\sigma = 5.67\times10^{-8}\,\text{W m}^{-2}\,\text{K}^{-4}

, determine its absolute temperature. a)

636\,\text{K}

b)

430\,\text{K}

c)

381\,\text{K}

d)

771\,\text{K}

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