JEE-IIT-NCERT Physics & Math

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

Dynamic lift is the force that acts on a body, such as airplane wing, a hydrofoil or a spinning bal… Read more Dynamic Lift

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

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

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

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

Let us now consider what happens when we change the pressure on a fluid contained in a vessel. Cons… Read more Hydraulic Machines

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

Consider a fluid at rest in a container. In Fig. 1 point 1 is at height h above a point 2. The pres… Read more Variation of Pressure with Depth

The French scientist Blaise Pascal observed that the pressure in a fluid at rest is the same at all… Read more Pascal’s Law

A sharp needle when pressed against our skin pierces it. Our skin, however, remains intact when a b… Read more Pressure