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Question

Assertion :If the specimen is subjected to progressively increasing tensile force it reaches the ultimate tensile stress and then necking and elongation occur rapidly until fracture. Reason: If the specimen is subjected to progressively increasing length, it is possible to observe the progressive necking and elongation, and to measure the decreasing tensile force in the specimen.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
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
Both Assertion and Reason are correct but the correct reason of Assertion is the Hooke's law.
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