A Carnot?s engine is made to work between 200°C and 0°C first and th – McqOptions

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1.	A Carnot?s engine is made to work between 200°C and 0°C first and then between 0°C and ?200°C. The ratio of efficiencies of the engine in the two cases is [KCET 2002]
A.	1.73 : 1
B.	1 : 1.73
C.	1 : 1
D.	1 : 2
Answer» C. 1 : 1

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