The filament of an electric lamp radiates energy at the rate of when its temperature is

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

The filament of an electric lamp radiates energy at the rate of

5.7\times10^{4}\,\text{W\,m}^{-2}

when its temperature is

1000\,\text{K}

. Using these data, determine a value for the Stefan–Boltzmann constant

\sigma

. Compare your result with the accepted value

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