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Examveda

The value of the wave length for maximum emissive power is given by

A. Kirchhoff’s law

B. Stefan’s law

C. Wine’s law

D. Planck’s law

Answer: Option C

Solution(By Examveda Team)

When the temperature of a blackbody radiator increases, the overall radiated energy increases and the peak of the radiation curve moves to shorter wavelengths. When the maximum is evaluated from the Planck radiation formula, the product of the peak wavelength and the temperature is found to be a constant.

This Question Belongs to Mechanical Engineering >> Heat And Mass Transfer

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