If a wire is stretched to double of its length.What will be the strain

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When a wire is stretched to double its length, the strain can be calculated using the formula for strain, which is the change in length divided by the original length. The change in length is the final length minus the initial length, resulting in a change of 2l - l, which equals l. Therefore, the strain is l/l, simplifying to 1. This demonstrates that when the wire is stretched to double its length, the strain is indeed 1. Understanding the correct application of the strain formula is crucial for accurate calculations.
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If a wire is stretched to double of its length.What will be the strain of wire?I need to prove it mathematically that how it becomes 1.
 
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What is the basic definition of strain?
Look it up and put the values for initial and final length in the formula.
 


Thanks you sir.
Basic definition is:Change in length/original length.So change in length is 2l.And original length is l.So it becomes 2.While the correct answer to this statement is 1.
 


You've got something messed up here.

The CHANGE in length. So, what is the final length? 2I. What's the initial? I.
CHANGE = FINAL LENGTH - INITIAL LENGTH
2I is not the change. Keep that in mind and try the equation again. See what you get.
 


Thanks you very much!Got it.
 

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