Assertion -Young-s modulus a perfectly plastic body is zero- Reason- For a perfectly plastic body- restoring force is zero-Both Assertion and Reason are correct and Reason is the correct explanation AssertionBoth Assertion and Reason are correct but Reason is not the correct explanation AssertionAssertion is correct but Reason is incorrectBoth Assertion and Reason are incorrect

Question

Toppr Admin · Accepted Answer

Young-apos-s modulus is only defined for the elastic part of the stress strain curve- So for a plastic body- it won-apos-t be defined-Statement 2 is correct as plasticity means original shape is not regained- so regaining force should be zero for a perfectly plastic material-

Young's modulus is only defined for the elastic part of the stress strain curve. So for a plastic body, it won't be defined.Statement 2 is correct as plasticity means original shape is not regained, so regaining force should be zero for a perfectly plastic material.

Young's modulus is only defined for the elastic part of the stress strain curve. So for a plastic body, it won't be defined.
Statement 2 is correct as plasticity means original shape is not regained, so regaining force should be zero for a perfectly plastic material.