Assertion (A): A convergent-divergent nozzle may give supersonic or subsonic flow at the exit even if the throat is choked.
Reason (R): Depending on the back pressure ratio Pb/Po, the divergent part of the nozzle may act as a supersonic nozzle or a subsonic diffuser.
Option (A)
Both A and R are true and R is the correct explanation of A
Option (B)
Both A. and R are true but R is NOT the correct explanation of A
A is true but R is false
A is false but R is true
Correct Option: