When two equal and opposite deforming forces are applied parallel to the cross-sectional area of an object, there is relative displacement between the opposite faces of the body. The restoring force per unit area developed due to the applied tangential force is known as tangential stress.
Which of the followings are dimensionless?
(i) Longitudinal strain
(ii) Poisson’s ratio
(iii) Shear strain
(iv) Volumetric strain
