A blackbody emits net radiation at 60W when it is at `727^(@)C` .Find net power radiated when it is a `1227 ^(@)C` Surrounding temperaure is `227^(@)C`

A blackbody emits net radiation at 60W when it is at 727^(@) C Find power radiated when it is a 1227^(@) C.Surrounding temperaure is 227^(@) C .

A body radiates heat at the rate of 5 cal/ m^(2)-s when its temperature is 227^(@)C . The heat radiated by the body when its temperature is 727^(@)C is

A black body emit heat at the rate of 20 W , when its tempertaure is 227^(@)C Another black body emits heat at the rate of 15 W , when its temperature is 227^(@)C . Compare the area of the surface of the two bodies, if the surrounding is at NTP

A body radiates heat at the rate of 4cal//m^(2)//s , when its temperature is 227^(@)C . What is the heat radiated by the same body when its temperature is 727^(@)C ?

A Fey 's blackbody is at 727^(@)C . What is the power radiated per unit area through its hole ?

A black body emits radiations of maximum intensity at a wavelength of Å 5000 , when the temperature of the body is 1227^(@)C . If the temperature of the body is increased by 1000^(@)C , the maximum intensity of emitted radiation would be observed at

A cube a = 3.0 cm on each side radiates energy at the rate of P = 20 J//s when its temperature is 727^(@)C and surrounding temperature 27^(@)C. Determine its emissivity.

A black body radiates 3 joule per square centimeter per second when its temperature is 127^(@)C .How much heat will be radiated per square centimetre per second when its temperature is 527^(@)C ?