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  • The longitudal extension of any elastic material is very small. In order to have an appreciable change, the material must be in the form of-Option: 1 <p

The longitudal extension of any elastic material is very small. In order to have an appreciable change, the material must be in the form of-

Option: 1

Long thick wire


Option: 2

Short thick wire


Option: 3

Long thin wire


Option: 4

Short thin wire


Answers (1)

best_answer

\Delta l=\frac{Fl}{AY}

\Delta l \: \: \alpha\: \frac{l}{A}

In order to have an appropriate change , the material must be in the form of a long thin wire.

Posted by

jitender.kumar

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