Question

A liquid flows through a horizontal tube as shown in figure. The velocities of the liquid in the two sections, which have areas of cross-sectionand are and respectively. The difference in the levels of the liquid in the two vertical tubes is h. Then

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

Answer 2

Let $\rho$ be density of liquid flowing in the tube,

$\frac { v _ { 1 } } { v _ { 2 } } = \frac { A _ { 2 } } { A _ { 1 } }$

According to Bernoulli’s equation for horizontal flow of liquid,