Liquids have no Poisson's ratio,because

A compressive force is applied to a uniform rod of rectangular cross-section so that its length decreases by $1 \%$. If the Poisson's ratio for the material of the rod is $0.2,$ which of the following statements is correct? "The volume approximately ..........."

If Poisson's ratio $\sigma$ is $-\frac{1}{2}$ for a material,then the material is

There is no change in the volume of a wire due to change in its length on stretching. The Poisson's ratio of the material of the wire is

Which statement is true for a metal?

If the Young's modulus of a material is $2.4$ times its modulus of rigidity,what is the Poisson's ratio of the material?