A blackbody is initially at a temperature where the peak wavelength of its emission…

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

Problem

A blackbody is initially at a temperature where the peak wavelength of its emission is 450 nm. It is cooled until its power output per unit area becomes one-third of the original value. Find the new value of λmax\lambda_{\text{max}}. (a) 370 nm370\,\text{nm} (b) 680 nm680\,\text{nm} (c) 593 nm593\,\text{nm} (d) 342 nm342\,\text{nm}

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