Compare the rate of loss of heat from a metal sphere at 627^ C with the rate of loss of heat from the same sphere at 327^ C , if the temperature of the surrounding is 27^ C . (nearly)

Step-by-step solution

The heat loss is given as R = e A ( T ^4- T ₀^4 ) Let surrounding temperature be denoted as T Heat loss from the metal sphere at a temperature T ₁ R ₁= e A ( T ₁^4- T ₀^4 ) Heat loss from the metal sphere at a temperature T ₂ R₂=e A (T₂^4-T^4 ) aligned R ₁ R ₂ & = T ₁^4- T ^4 ~T ₂^4- T ^4 = 900^4-300^4 600^4-300^4 R ₁ R ₂ & =5.3 aligned