Heat and Mass Transfer According to Wien's law, the wavelength corresponding to maximum energy is proportion to F T Absolute temperature (T) I² F T Absolute temperature (T) I² ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According of Kirchhoff's law Radiant heat is proportional to fourth power of absolute temperature Emissive power and absorptivity are constant for all bodies Ratio of emissive power to absorptive power for all bodies is same and is equal to the emissive power of a perfectly black body Emissive power depends on temperature Radiant heat is proportional to fourth power of absolute temperature Emissive power and absorptivity are constant for all bodies Ratio of emissive power to absorptive power for all bodies is same and is equal to the emissive power of a perfectly black body Emissive power depends on temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total radiation from a black body per second per unit area is ________ fourth power of the absolute temperature. This statement is known as Stefan Boltzmann law. Inversely proportional to Directly proportional to Equal to None of these Inversely proportional to Directly proportional to Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical thickness of insulation for a sphere is h₀/2k k/h₀ 2k/h₀ h₀/k h₀/2k k/h₀ 2k/h₀ h₀/k ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The natural convection air cooled condensers are used in All of these Water coolers Room air conditioners Domestic refrigerators All of these Water coolers Room air conditioners Domestic refrigerators ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of surface convection resistance to the internal conduction resistance is known as Grashoff number Stanton number Prandtl number Biot number Grashoff number Stanton number Prandtl number Biot number ANSWER DOWNLOAD EXAMIANS APP
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