Calculate the total power radiated by a square blackbody plate of area 100 cm² whose…

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

Calculate the total power radiated by a square blackbody plate of area 100 cm² whose radiation has a maximum at wavelength 500 nm. Take Wien’s constant b=2.898×10−3 m Kb = 2.898 \times 10^{-3}\,\text{m K} and Stefan’s constant σ=5.67×10−8 W m−2K−4\sigma = 5.67 \times 10^{-8}\,\text{W m}^{-2}\text{K}^{-4}. (a) 6.4×107 W6.4 \times 10^{7}\,\text{W} (b) 6.4×103 W6.4 \times 10^{3}\,\text{W} (c) 6.4×105 W6.4 \times 10^{5}\,\text{W} (d) 6.4×104 W6.4 \times 10^{4}\,\text{W}

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