Question

The volume of liquid flowing per second out of an orifice at the bottom of the tank does not depend upon:

• A. the density of the liquid
• B. acceleration due to gravity
• C. the height of the liquid above orifice
• D. the area of the orifice

Answer 1

The correct option is A the density of the liquid

$\theta =$ Volume flow per second.
$\theta =$ $v.A$ : where $v$ is flow velocity
$v=\sqrt{2gh}$
$\theta =A\sqrt{2gh}$
Hence, volume of liquid flowing per second is not depend on the density of the liquid.
So, the correct option is $\left(A\right)$