For a black body at temperature `727^@C`, its radiating power is 60 watt and temperature of surrounding is `227^@C`. If temperature of black body is changed to `1227^@C` then its radiating power will be-

For a black body at temperature 527^(@)C , its radiating power is 60 W and temperature of surrounding is 127^(@)C . If the temperature of the black body iss changed to 927^(@)C , then its radiating power will be:-

For a black body at temperature 727^(@)C , its rate of energy loss is 20 watt and temperature of surrounding is 227^(@)C . If temperature of black body is changed to 1227^(@)C then its rate of energy loss will be

A black body radiates 20 W at temperature 227^(@)C . If temperature of the black body is changed to 727^(@)C then its radiating power wil be

A black body radiates 20 W at temperature 227^(@)C . If temperature of the black body is changed to 727^(@)C then its radiating power wil be

A black body radiates 20 W at temperature 227^(@)C . If temperature of the black body is changed to 727^(@)C then its radiating power wil be

A black body at high temperature emits thermal radiations of

A body emits Q cal/ cm^(2) of radiation at temperature 227^(@)C . If the temperature of the body is raised to 727^(@)C , then the amount of radiant enegy emitted will be

A black body is at a temperature of 527^@C , to radiate twice as much energy per second its temperature must be increased to

A black body is at a temperature of 527^(@)C , to radiate twice as much energy per second its temperature must be increased to

A black body, at a temperature of 227^@C , radiates heat at a rate of 20 cal m^(-2)s^(-1) . When its temperature is raised to 727^@C , the heat radiated by it in cal M^(-2)s^(-1) will be closest to