Question

The velocity of efflux of a liquid for a given height of water column in an open tank, through a small orifice at the bottom of the tank does not depend on:

• A. density of liquid
• B. height of the liquid column above the orifice
• C. acceleration due to gravity
• D. none of the above

Answer 1

The correct option is A density of liquid

We know that velocity of efflux is given by $v=\sqrt{2gh}$, which is independent of the density of the liquid.


Hence, option $\left(A\right)$ is the correct answer.

Why this Question? Note: The velocity of efflux is given by, $v=\sqrt{2gh}$ Where, $h=$ height of liquid above the orifice.