the longitudinal and transverse strains in a rod are 3 ×10^-3 and 0.6×10^-3 find Poisson's ratio of the rod.
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In materials science and solid mechanics, Poisson's ratio ν (nu) is a measure of the Poisson effect, the deformation (expansion or contraction) of a material in directions perpendicular to the direction of loading. The value of Poisson's ratio is the negative of the ratio of transverse strain to axial strain. For small values of these changes, ν is the amount of transversal elongation divided by the amount of axial compression.
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