If Kelvin temperature of an ideal black body is doubled, what will be the effect on energy radiated by it ?

If Kelvin temperature of an ideal black body is doubled, what will be

1.	If Kelvin temperature of an ideal black body is doubled, what will be the effect on energy radiated by it ?
Answer» Solution :`EalphaT^(4):.(E_(2))/(F_(1))=((T_(2))/T_(1))^(4)=((2T_(1))/(T_(1)))^(4)=16` `:. E_(2)=16E_(1)`