Capillary Rise

One consequence of the pressure difference across a curved liquid-air interface… Read more Capillary Rise

Drops and Bubbles

One consequence of surface tension is that free liquid drops and bubbles are sp… Read more Drops and Bubbles

Angle of Contact

The surface of liquid near the plane of contact, with another medium is in gene… Read more Angle of Contact

Surface Energy and Surface Tension

As we have discussed that an extra energy is associated with surface of liquids… Read more Surface Energy and Surface Tension

Surface Tension

You must have noticed that, oil and water do not mix; water wets you and me but… Read more Surface Tension

Viscosity and Stokes’ Law

Most of the fluids are not ideal ones and offer some resistance to motion. This… Read more Viscosity and Stokes’ Law

Dynamic Lift

Dynamic lift is the force that acts on a body, such as airplane wing, a hydrofo… Read more Dynamic Lift

Venturi-meter

The Venturi-meter is a device to measure the flow speed of incompressible fluid… Read more Venturi-meter

Speed of Efflux: Torricelli’s Law

The word efflux means fluid outflow. Torricelli discovered that the speed of ef… Read more Speed of Efflux: Torricelli’s Law

BERNOULLI’S PRINCIPLE

Fluid flow is a complex phenomenon. But we can obtain some useful properties fo… Read more BERNOULLI’S PRINCIPLE

Streamline Flow

So far we have studied fluids at rest. The study of the fluids in motion is kno… Read more Streamline Flow

Hydraulic Machines

Let us now consider what happens when we change the pressure on a fluid contain… Read more Hydraulic Machines

Atmospheric Pressure and Gauge Pressure

The pressure of the atmosphere at any point is equal to the weight of a column … Read more Atmospheric Pressure and Gauge Pressure

Variation of Pressure with Depth

Consider a fluid at rest in a container. In Fig. 1 point 1 is at height h above… Read more Variation of Pressure with Depth

Pascal’s Law

The French scientist Blaise Pascal observed that the pressure in a fluid at res… Read more Pascal’s Law

Pressure

A sharp needle when pressed against our skin pierces it. Our skin, however, rem… Read more Pressure