JEE-IIT-NCERT Physics & Math

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

The elastic behaviour of materials plays an important role in everyday life. All engineering design… Read more Applications Of Elastic Behaviour Of Materials

When a wire is put under a tensile stress, work is done against the inter-atomic forces. This work … Read more Elastic Potential Energy in a Stretched Wire

In Section ( STRESS AND STRAIN ), we have seen that when a body is submerged in a fluid, it undergo… Read more Bulk Modulus and Poisson's Ratio

The ratio of shearing stress to the corresponding shearing strain is called the shear modulus of th… Read more Shear Modulus

A typical experimental arrangement to determine the Young’s modulus of a material of wire under ten… Read more Determination of Young’s Modulus of the Material of a Wire

The proportional region within the elastic limit of the stress-strain curve (region OA in Fig. 9.3)… Read more Elastic Moduli

Stress and strain take different forms in the situations depicted in the Fig. (1). For small deform… Read more Hooke’s Law and Stress-Strain Curve