Question

Water flows through a non-uniform tube of area of cross section of whose parts A,B,C are 25cm${}^2$, 5cm${}^2$ and 35cm${}^2$ respectively. Which part has the highest velocity ?

• A. A
• B. B
• C. C
• D. All have same velocity

Answer 1

The correct option is B B

From the continuity equation,
As the rate flow is constant the one with smallest across section flows with maximum velocity i.e.,B