For compressible fluid flow in a pipe, having decrease in specific gravity what will be the effect of decrease in diameter?
(a) It will cause increase in velocity
(b) It will cause decrease in velocity
(c) It remains constant
(d) None of the mentioned
I had been asked this question in final exam.
Enquiry is from Continuity Equation in Two and Three Dimensions topic in chapter Kinematics of Flow and Ideal Flow of Fluid Mechanics