63) The value of the wavelength for maximum emissive power is given by —
Answer is:
Wien′s law
Related Heat transfer MCQ with Answers
Answer is:
more
Answer is:
shorter wavelength
67) According to Stefan-Boltzmann law, ideal radiators emit radiant energy at a rate proportional to
Answer is:
fourth power of absolute temperature
Explanation:
According to Stefan's law, the total radiation from a black body per second per unit area is directly proportional to the fourth power of the absolute temperature. Stefan Boltzmann law is applicable for heat transfer by radiation. The unit of Stefan-Boltzman is Watt/m2K4.