Direction: ;
Each of the next consists 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 :
Codes :
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and Rare 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): Rocket engines are used for space research.
Reason (R): They have high specific impulse.