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Thermal Radiation. Quantum Nature of Light.

Problem 5.247

The temperature of one of the two heated black bodies is T1=2500 KT_{1}=2500 \mathrm{~K}. Find the temperature of the other body if the wavelength corresponding to its maximum emissive capacity exceeds by Δλ=0.50μm\Delta \lambda=0.50 \mu \mathrm{m} the wavelength corresponding to the maximum emissive capacity of the first black body

Reveal Answer
T2=bT1/(b+T1Δλ)=1.75kKT_{2}=b T_{1} /\left(b+T_{1} \Delta \lambda\right)=1.75 \mathrm{kK}
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