Explain poisson's ratio. State it's limits.

Define poisson's ratio.

Why poisson's ratio has no unit ?

What are different moduli of elasticity. Derive mathematical relation between them. Define poisson's ratio and prove that the limit lies between -1 to 1/2.

Poisson's ratio is a _____.

How young's modulus, bulk modulus and poisson's ratio are connected ?

A wire having a diameter of 3mm is streached by external force to produce a longitudinal strain of 3xx10^-3 . What will be the change in diameter if the poisson's ratio of the wire is 0.4.

If there is no change in the volume of a wire due to change in it's length on stretching , what would be the poisson's ratio of the material.

What is thrust ? State it's dimension.