Directions: The following items consist of two statements: one labeled as the ‘Assertion A’ and
The other as ‘Reason (R)’ You are to examine these two statements carefully and select the
Answers to these items using the codes given below
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Assertion (A): Two engines A and B work on the Carnot cycle. Engine A uses air as the working
substance and Buses steam as the working substance. Both engines are using same efficiency
Reason (R): Carnot cycle efficiency is independent of working substance.