Monohar Pandey Solutions for Exercise 2: Exercise 2

Which of the following curves represents the variation of surface tension $\left(\mathrm{Y}\right)$ with temperature $\left(\mathrm{T}\right)$ ?

Which among the following figure shows the variation of stress and strain for a vulcanized rubber?

Consider the following statements:
$1.$If a body completely gains its original shape after removal of force, it is elastic body.
$2.$The property to restore the natural shape of a body is elasticity.
$3.$When a body partially regains its original shape after removal of deforming force it is partially elastic.
Which one of the option is correct?

Elasticity in the material is due to:
$1.$ The change or effective radius of the molecules.
$2.$ The change in intermolecular distance and restoring forces starts acting on the molecules.
$3.$ The deforming forces acting on it.
Which option is true?

If by applying a force, the shape of a body is changed, then the corresponding stress is_____________________.

Consider the following statements:
$1.$ If a body completely gains its original shape after removal of forces, it is elastic body.
$2.$ The property to restore the natural shape of a body is elasticity.
$3.$ When a body partially regains its original shape after removal of deforming force it is partially elastic.
Which one of the options is/are correct?

Longitudinal strain is defined when _____.

In an experiment to determine the Young's modulus of a material of a wire, and the suspended mass are doubled. Then the Young's modulus of the wire.