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Radiation-:-Processes-and-Properties

Radiant energy with an intensity of 800 W/m2 strikes a flat plate normally. The absorptivity is thrice reflectivity and twice transmissivity. Determine rate of absorption


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Radiant energy with an intensity of 800 W/m2 strikes a flat plate normally. The absorptivity is thrice reflectivity and twice transmissivity. Determine rate of absorption

A thin metal plate of 4 cm diameter is suspended in atmospheric air whose temperature is 290 K. This plate attains a temperature of 295 K when one of its face receives radiant energy from a heat source at the rate of 2 W. If heat transfer coefficient on both surfaces of the plate is stated to be 87.5 W/m 2 K, workout the reflectivity of the plate

Radiant energy with an intensity of 800 W/m2 strikes a flat plate normally. The absorptivity is thrice the reflectivity and twice the transmissivity. Determine the rate of absorption

Radiation : Processes and Properties

Heat-Transfer