Question

The diameter at two ends of a pipe is in the ratio of 2:3, then the speed of fluid at the
two ends is in the ratio of
(a) 3:2
(b) 2:3
(c) 9.4
(d) 4:9​

Answer 1

Answer:

The answer is (a) 3: 2

Explanation:

At any given flow rate, flow velocity is inversely proportional to the cross sectional area of the pipe.

Smaller pipes will lead to higher flow speeds; larger pipes, will lead to slower flow speeds.

Answer 2

Answer:

The answer is 9:4 mentioned in my key but I don't know the reason