PHYSICS · Single correct · CBSE · Physics · Mechanical Properties of Fluids · Mechanical Properties of Fluids
Problem
In a horizontal pipeline carrying water, a small tube faces upstream so that water comes to rest inside it. The tube and the neighbouring flowing stream are connected to a U-tube containing mercury. The difference in mercury levels represents which of the following?
(a) Hydrostatic pressure due only to depth difference
(b) Dynamic pressure associated with the motion of water
(c) Stagnation (total) pressure of the water
(d) Static pressure of the flowing water in the main pipe