SSC JE Mechanical Engineering 2017 Set 5 Paper

Question : 190 of 200

Marks: +1, -0

Modulus of rigidity is defined as the ratio of ____.

linear stress to longitudinal strain
stress to volumetric strain
shear stress to shear strain
stress to strain

Solution:

Modulus of Rigidity - G - (Shear Modulus) is the coefficient of elasticity for a shearing force.
It is defined as. "the ratio of shear stress to the displacement per unit sample length (shear strain)"

G =τ/γ

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