The Bernauli's Theorem is based on the conservation of:

The mass of water rises in capillary tube of radius R is M. The mass of water that rises in tube of radius 2R is

Two small drops of mercury, each of radius R, coalesce to form a single large drop. The ratio of the total surface energies before and after the change is:

For a ball falling in a liquid with constant velocity, ratio of resistance force due to the liquid to that due to gravity is

A cylindrical vessel is filled with water upto height H. A hole is bored in the wall at a depth h from the free surface of water. For maximum range, h is equal to

What is the shape when a non-wetting liquid in displaced in a capillary tube?

At which of the following temperature, the value of surface tension of water is minimum?

A container of area 0.02 m 2 is filled with water. Find the pressure at the bottom of the container if a weight is placed on the piston. (as shown in the figure).

Why machines are sometimes jammed in winter?

Why the aeroplanes and cars are given a streamline shape?

How does the rate of flow of a liquid through a tube depend on the radius of its bore?

Why is it that a liquid set in rotation comes to rest after some time?

27 identical drops of water are falling down vertically in air each with a terminal velocity 0.15\(ms^{ -1 }\)>if they combine to form a single bigger drop, what will be its terminal velocity?

Two soap bubbles have radii in the ratio2:3.Compare the excess of pressure inside these bubbles.

What is the corresponding flow rate? (Take viscosity of blood to be 2.084\(\times\) 10^{- 3}Pa-s)

On what factors does the critical velocity of the liquid depend?

What should be the maximum average velocity of water in a tube of diameter 2 cm so that flow is laminar? The viscosity of water is 0.001 Nm^-2 s.

At a depth 1000m in an ocean
Find the force acting on the window of area \(20\ cm\ \times \ 20cm\) of a submarine at this depth, the interior of which is maintained at sea-level atmospheric pressure.(The density of sea water is \(1.03\times { 10 }^{ 3 }kg{ m }^{ -3 },\ g=10\ m{ s }^{ -2 }\))

Consider the two horizontal pipes of different diameters which are connected together and the water is flowing through these two pipes. In the first pipes, the pressure is 3.0\(\times\)10⁴N/m² and the speed of the water flowing is 5m/s. If the diameters of the pipes are 4 cm and 6 cm, respectively, then what will be the speed and the pressure of the water in the second pipe? Density of the water is 10³kg/m³ .

Water flows through a horizontal pipe whose internal diameter is 2.0 cm , at speed of 1.0 ms^-1 . What should be the diameter of the nozzle, if the water is to emerge at a speed of 4.0 ms^-1 ?

Water stands at a depth H in a tank, whose side walls are vertical. A hole is made on one of the walls at a depth h below the water surface. Find at what distance from the foot of the wall does the emerging stream of water strike the floor and for what value of h this range is maximum.