Question:-
Assertion (A): For pressure ratio greater than the critical pressure ration, a convergent divergent nozzle is required
Reason (R): Divergent portion increases the flow area which increases the mass flow rate
Option (A)
Both A and R are individually true and R is the correct explanation of A
Option (B)
Both A and R are true but R is not the correct explanation A
Option(C)
A is true but R is false
Option(D)
A is false but R is true
Correct Option:
(D)
Question Solution:
In convergent-divergent nozzle exit pressure is less than critical pressure hence convergent divergent nozzle is not required for exit pressure higher than critical pressure
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