Introduction to Physics

The flow of a liquid is said to be steady, streamline or laminar if every particle of the liquid follows exactly the path of its…

Consider a liquid to flow steadily through a pipe as shown in the Figure. The layers of the liquid which are in contact with the…

Viscosity is the property of the fluid by virtue of which it opposes relative motion between its different layers. Both liquids and gases exhibit viscosity…

The Searle’s apparatus consists of two rectangular steel frames A and B as shown in Figure. The two frames are hinged together by means of…

When gravity is taken into account, Pascal’s law is to be modified. Consider a cylindrical liquid column of height It and density ρ in a…

Let h be the height of the liquid column in a cylinder of cross sectional area A. If ρ is the density of the liquid,…

A fluid is a substance that can flow when external force is applied on it. The term fluids include both liquids and gases. Though liquids…

Knowledge of the modulus of elasticity of materials helps us to choose the correct material. in right dimensions for the right application. The following examples…

English Physicist Robert Hooke (1635 – 1703) in the year 1676 put forward the relationship between the extension produced in a cable and the restoring…

English Physicist Robert Hooke (1635 – 1703) in the year 1676 put forward the relation between the extension produced in a wire and the restoring…