Define poisson.s ratio ? what are its limits?

Define Poisson ratio.

What are the theoritical units of Poission.s ratio? What are the practical limits of poission ratio ?

Define surface tension. What are its units ?

The increase in length on stretching a wire is 0.05 % . If its poisson's ratio is 0.4, then its diameter

The poisson's ratio cannot have the value

Determine the poisson's ratio of the material of a wire whose volume remains constant under an external normal stress.

When a rod of length 2.5 m and radius 10 mm is subjected to a force the elongation is 3mm and decrease of radius is 0.0025 mm. Find poisson.s ratio of the material of the rod.

The Poisson’s ratio for a metal is 0.25. If lateral strain is 0.0125, the longitudinal strain will be

Average value of poisson's ratio for a mixture of 2 mole of each gas A and B is 1.66 , then

What is Wurtz reaction ? Explain with examples. What are its limitations?