Deformation and Elastic Behaviour of Solids

One end of a uniform bar of weight $W_1$ is suspended from the roof and a weight $W_2$ is suspended from the other end. The area of cross-section is $A$. What is the stress at the midpoint ?

A rod of length $1000 \mathrm{mm}$ and coefficient of linear expansion $\alpha ={10}^{-4}$ per degree is placed symmetrically between fixed walls separated by $1001 \mathrm{mm}$. Young's modulus of the rod is ${10}^{11}\mathrm{N} {\mathrm{m}}^{-2}$. If the temperature is increased by $20°\mathrm{C},$ then the stress developed in the rod is (in $\mathrm{N} {\mathrm{m}}^2$)

A copper wire and a steel wire of the same diameter and length are connected end to end and a force is applied. The force stretches their combined length by $1\mathrm{cm}.$The two wires will have

The elastic limit for a gas,

When is a body said to be perfectly elastic

What do you mean by plastic body?

The unit of stress is _____.

Which term is not related to the elasticity.

Resistance to elastic deformation of a material is measured by:

Lateral strain produced in a wire depends on:

Perfectly plastic body is an ideal concept.

Define a Perfectly plastic body.

When the force being applied tangentially over the surface area of the plane which kind of stress is obtained-

SI unit of strain is

When a spiral spring is stretched by suspending a load on it, the strain produced is called____.

Out of the following whose elasticity is independent of temperature;

Find the elongation of a steel rod of $100 \mathrm{mm}$ length when it is subjected to a tensile strain of $0.005$?

Substance which can be stretched to cause large strains are called__

Define Poisson's ratio? What is it's unit?

Substance which can be stretched to cause large strains are called Elastomers.