The Hooke's law is valid for

only proportional region of the stress strain curve
entire stress strain curve
entire elastic region of the stress strain curve
elastic as well as plastic region of the stress strain curve

Correct Answer: only proportional region of the stress strain curve

Explanation:

Hooke's law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.Hooke’s law is valid only in the linear part of stress-strain curve. Hence, statement 1 is correct.

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