## Atmospheric Pressure and Gauge Pressure

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

## Variation of Pressure with Depth

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

## Pascal’s Law

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

## Pressure

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

## Applications Of Elastic Behaviour Of Materials

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

## Elastic Potential Energy in a Stretched Wire

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

## Bulk Modulus and Poisson's Ratio

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

## Shear Modulus

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

## Determination of Young’s Modulus of the Material of a Wire

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

## Elastic Moduli

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

## Hooke’s Law and Stress-Strain Curve

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