Consider a water jar of radius $R$ that has water filled up to height $H$ and is kept on a stand of height $h$ (see figure) . Through a hole of radius $r$ $(r << R)$ at its bottom, the water leaks out and the stream of water coming down towards the ground has a shape like a funnel as shown in the figure. If the radius of the cross-section of water stream when it hits the ground is $x.$ Then
$x\, = \,r{\left( {\frac{H}{{H + h}}} \right)^{\frac{1}{4}}}$
$x\, = \,r\left( {\frac{H}{{H + h}}} \right)$
$x\, = \,r{\left( {\frac{H}{{H + h}}} \right)^2}$
$x\, = \,r{\left( {\frac{H}{{H + h}}} \right)^{\frac{1}{2}}}$
A liquid is kept in a cylindrical vessel which is being rotated about a vertical axis through the centre of the circular base. If the radius of the vessel is $ r $ and angular velocity of rotation is $\omega $, then the difference in the heights of the liquid at the centre of the vessel and the edge is
Water flows through a frictionless duct with a cross-section varying as shown in figure. Pressure $p$ at points along the axis is represented by
Water is flowing through a horizontal tube according to the figure. Its diameter at two points are $0.3\,m$ and $0.1\,m$ respectively. Pressure difference between these two points is equal to $0.8\,m$ of water column. Find rate of flow of water in the tube ..... $ltr/s$
What is Aerofoil ? Explain .
Prove Bernoulli’s Principle.