Mechanical Engineering > GATE 2022 SET-2 > Heat Transfer
Wien’s law is stated as follows: λmT = C, where C is 2898 µm∙K and λm is the wavelength at which the emissive power of a black body is maximum for a given temperature T. The spectral hemispherical emissivity (𝜀 ) of a surface is shown in
the figure below (1Å = 10-10m). The temperature at which the total hemispherical emissivity will be highest is __________ K (round off to the nearest integer).
Correct : a
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