Assertion (A): Gas and stream nozzles are shaped at inlet in such a way that the nozzle converges rapidly over the first portion of its length.
Reason: This shape is provided so that velocity at inlet to the nozzle is negligibly small in comparison with the exit velocity.
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