Question

A wire is stretched to double of its length, strain in wire will be
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Answer 1

Explanation:

Longitudinal Strain is ratio of change in length to original length. Wire is stretched to double it's original length. Hence change in length = 2×L - L (where L is original length. ) Therefore change in length is L.

Answer 2

Answer:

Longitudinal strain =

originallength

changeinlength

If l be the original length and if stretched to double of its length , change in length =l

So , strain =1