In the Fig. 15.5.2 below in shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tube, A, B and C at the junction are respectively 2 cm, 1 cm , and 2 cm. It can be said that the

Options

A. Height of the liquid in the tube A is maximum
B. Height of the liquid in the tubes A and B is the same
C. Height of the liquid in all three tubes is the same
D. Height of the liquid in the tubes A and C is the same

Answer

D

Explanation

As cross-section areas of both the tubes A and C are same and tube is horizontal hence according equation of continuity `v_(A)=v_(C)` and therefore according to Bernoulli's theoram `P_(A)=P_(C)` i.e. height of liquid is same in both the tubes A and C