Embibe Experts Solutions for Chapter: Properties of Solid and Liquid, Exercise 3: Level 3

A metallic rod of length $l$ and cross-sectional area $A$ is made of a material of Young's modulus $Y$. If the rod is elongated by an amount $y$, then the work done is proportional to

A raft of wood of mass $120 \mathrm{kg}$ floats in water. The weight that can be put on the raft to make it just sink should be $\left(d_{\mathrm{raft}}=600 \mathrm{kg} {\mathrm{m}}^{-3}\right)$

A block of silver of mass $4 \mathrm{kg}$ hanging from a string is immersed in a liquid of relative density $0.72$. If relative density of silver is $10,$ then tension in the string will be: [ take $g=10 \mathrm{m} {\mathrm{s}}^{-2}$]

Water (density $\rho$) is flowing through the uniform tube of cross-sectional area $A$ with a constant speed $v$ as shown in the figure. The magnitude of force exerted by the water on the curved corner of the tube is (neglect viscous forces)

Water containing air bubbles flows without turbulence through a horizontal pipe which has a region of narrow cross- section. In this region the bubbles

A bubble of radius $R$ in water of density $\rho$ is expanding uniformly at speed $v$. Given that water is incompressible, the kinetic energy of water being pushed is,

A tank is filled with water up to a height $H$. Water is allowed to come out of a hole Pin one of the walls at a depth $D$ below the surface of the water. Express the horizontal distance $x$ in terms of $H$ and $D$.

A viscous fluid is flowing through a cylindrical tube. The velocity distribution of the fluid is best represented by the diagram.