Embibe Experts Solutions for Chapter: Elasticity, Exercise 2: Exercise-2

When a force is applied on a wire of uniform cross-sectional area $3\times {10}^{-6}{ \mathrm{m}}^2$ and length $4 \mathrm{m}$, the increase in length is $1 \mathrm{mm}$. Energy stored in it will be $\left(\mathrm{Y}=2\times {10}^{11} \mathrm{N}/{\mathrm{m}}^2\right)$

When a load of $5 \mathrm{kg}$ is hung on a wire then extension of $3$ meter takes place, then work done will be :

When a load of $5 \mathrm{kg}$ is hung on a wire then extension of $3$ metre takes place, then work done will be:

A $1 \mathrm{m}$ long metal wire of cross sectional area ${10}^{-6}{ \mathrm{m}}^2$ is fixed at one end from a rigid support and a weight $W$ is hanging at its other end. The graph shows the observed extension of length $\Delta \ell$ of the wire as a function of $W$. Young's modulus of material of the wire in $\mathrm{SI}$ units is

A liquid has only

A rubber ball is brought into $200 \mathrm{m}$ deep water, its volume is decreased by $0.1\%$ then volume elasticity modulus of material of ball will be :

If poission ratio is $0.4$ and after increasing the length of wire by $0.05\%$ then decrease in its diameter will be:

A tensile force $F$ is applied on all six surfaces of a cube of side unity then increase in length of each side will be ($Y=$young measurement, $\sigma =$ Pieson ratio)