Question

A black body is placed in an evacuated enclosure whose walls are blackened and kept at constant temperature of 300K compare the net amount of heat gained or lost by the body when it's temperature is 600K​

Answer 1

Answer:

A surface of area 0.5m 2 , emissivity 0.8 and temperature 150 0 C is placed in a large, evacuated chamber whose walls are maintained at 25 ...