Heat and Mass Transfer Planck’s law holds good for all coloured bodies All of these polished bodies black bodies all coloured bodies All of these polished bodies black bodies ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The concept of overall coefficient of heat transfer is used in case of heat transfer by Convection Radiation Conduction and convection Conduction Convection Radiation Conduction and convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The expression Q = ρ AT4 is called Newton Reichmann equation Joseph-Stefan equation Fourier equation Stefan-Boltzmann equation Newton Reichmann equation Joseph-Stefan equation Fourier equation Stefan-Boltzmann equation 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 Equal to None of these Directly proportional to Inversely proportional to Equal to None of these Directly proportional to ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Remain same Decreases May increase or decrease depending upon temperature Increases Remain same Decreases May increase or decrease depending upon temperature Increases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. None of these Both (A) and (B) Minimum energy Maximum energy None of these Both (A) and (B) Minimum energy Maximum energy ANSWER DOWNLOAD EXAMIANS APP
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