Efficiency of an engine is eta1 at T1 =200 degree C and T2= 0 degree C and eta2 at T1 = 0 degree C and T2 = -200 degreeC find the ratio of eta1 / eta2

Efficiency of an engine is eta1 at T1 =200 degree C and T2= 0 degree C

1.	Efficiency of an engine is eta1 at T1 =200 degree C and T2= 0 degree C and eta2 at T1 = 0 degree C and T2 = -200 degreeC find the ratio of eta1 / eta2
Answer» 1 0.721 0.577 0.34 Answer :C