Question

A large volume of water is gushing through a pipe which narrows at the outlet. At which point, A, B or C will the water flow be the fastest?

• A. A
• B. B
• C. C
• D. Same speed at A, B, and C

Answer 1

The correct option is C

C

Have you ever done gardening or ever saw someone doing that? While doing that, the water stream from the gardening pipe changes it's velocity with application of pressure. The below figure will explain it better.

As is evident from the figure that the velocity of water increases as the cross section of a pipe is reduced,the velocity of water increases. So, among all the three points A,B and C in the question figure, the water flow will be fastest at the narrowest point which in this case is point C.