A blackbody surface of area has its peak wavelength at

PHYSICS · Multi-part · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

A blackbody surface of area

0.020\,\text{m}^2

has its peak wavelength at

500\,\text{nm}

. Stefan–Boltzmann constant

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

and Wien’s constant

b = 2.898\times10^{-3}\,\text{m\,K}

. (i) Calculate the absolute temperature of the surface. (ii) Determine the total power it radiates.