6. The modulus of rigidity is the ratio of A.Longitudinal stress to longitudinal strain B.Volume stress to volume strain C.Shearing stress to shearing strain D.Tensile stress to tensile strain
Option C Solution: The modulus of rigidity, also known as shear modulus, is defined as the ratio of shear stress to shear strain of a structural member. This property depends on the material of the member: the more elastic the member, the higher the modulus of rigidity.