Heat and Mass Transfer The radiation emitted by a black body is known as Total radiation Full radiation All of these Black radiation Total radiation Full radiation All of these Black radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical temperature is the temperature Above which a gas will never liquefied Below which a gas does not obey gas laws Above which a gas may explode Below which a gas is always liquefied Above which a gas will never liquefied Below which a gas does not obey gas laws Above which a gas may explode Below which a gas is always liquefied ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Stefan Boltzmann law, the total radiation from a black body per second per unit area is directly proportional to the Square of the absolute temperature Cube of the absolute temperature Absolute temperature Fourth power of the absolute temperature Square of the absolute temperature Cube of the absolute temperature Absolute temperature Fourth power of the absolute temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, body will be transparent when(Where a = absorptivity, p = reflectivity, x = transmissivity) P = 0, x= 1, and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 1 P=1, x = 0, and a = 0 P = 0, x= 1, and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 1 P=1, x = 0, and a = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of solid metals with rise in temperature normally Increases May increase or decrease depending on temperature Decreases Remain constant Increases May increase or decrease depending on temperature Decreases Remain constant ANSWER DOWNLOAD EXAMIANS APP
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
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