The efficiency of a heat engine if the temperature of source 227^(@)C and that of sink is 27^(@)C nearly

The efficiency of a heat engine if the temperature of source 227^(@)C

1.	The efficiency of a heat engine if the temperature of source 227^(@)C and that of sink is 27^(@)C nearly
Answer» 0.4 0.5 0.6 0.7 Answer :A