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

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 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 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 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 :-

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

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 body radiates energy 5 W at a temperature of 127^(@)C . If the temperature is increased to 927^(@)C , then it radiates energy at the rate of

A body radiates energy 5 W at a temperature of 127^(@)C . If the temperature is increased to 927^(@)C , then it radiates energy at the rate of

A black body radiates at the of W watts at a temperture T. If the temperature of the body is reduced to T//3 , it will radiate at the rate of (in Watts)

The temperature of a black body is increased from 7^(@)C to 567^(@)C , then the rate of energy radiation becomes