Embibe Experts Solutions for Chapter: Elasticity, Exercise 4: Exercise (Conceptual Questions)

The lower surface of a cube is fixed. On its upper surface, force is applied at an angle of ${30}^{\circ }$ from its surface. The change will be in

A fixed volume of iron is drawn into a wire of length $‘L’$. The extension $‘x’$ produced in the wire by a constant force $‘F’$ is proportional to _____.

A wire elongates by $l \mathrm{mm}$ when a load $W$ is hanged from it. If the wire goes over a pulley and two weights $W$ each are hung at the two ends, the elongation of the wire will be (in $\mathrm{mm}$)

A cylinder is filled with a liquid of density $d$ up to a height $h$. If the beaker is at rest, then the mean pressure on the wall is

The spring balance $A$ reads $2 \mathrm{kg}$ with a block $m$ suspended from it. A balance $B$ reads $5 \mathrm{kg}$ when a beaker with liquid is put on the pan of the balance. The two balances are now so arranged that the hanging mass is inside the liquid in the beaker as shown in the figure in this situation

A jar is filled with two non-mixing liquids $1$ and $2$ having densities ${\rho }_1$ and ${\rho }_2$, respectively. A solid ball, made of a material of density ${\rho }_3$, is dropped in the jar. It comes to equilibrium in the position shown in the figure. Which of the following is true for ${\rho }_1$, ${\rho }_2$ and ${\rho }_3$?

If the density of a block is$981 \mathrm{kg} {\mathrm{m}}^{-3}$, then it shall

A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distance $l$ and $h$ are shown there. After some time the coin falls into the water. Then