Assertion :Elasticity restoring forces may be conservative. Reason: The value of strain for same stress are different while increasing the load and while decreasing the load.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
due to elastic after effect the strain in a material like glass tends to remain present or remain behind the stress applied , with the result that a rapidly changing stress,the strain is smaller for the same value of stress.when it is increasing than when it is decreasing

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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