1.

Asseration (A) : A jet aircraft moving at Mach Number equal to 1 travels faster at an altitude of 15 km than while moving at Mach Number equal to 1 near the sea level.Reason (R) : The velocity of sound depends on the temperature of the surrounding medium.

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are 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
Answer» B. Both A and R are true but R is NOT the correct explanation of A


Discussion

No Comment Found