In a wire of length $L,$ the increase in its length is $l.$ If the length is reduced to half, the increase in its length will be
A$l$
B$2l$
C$\frac{l}{2}$
D
None of the above
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C$\frac{l}{2}$
c (c) $l \propto L$ i.e. if length is reduced to half then increase in length will be $\frac{l}{2}.$
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