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Q.

The maximum load, a wire can withstand without breaking, when its length is reduced to half of its original length, will [NCERT Exemplar]

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a

be double

b

be half

c

be four times

d

remain same

answer is D.

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Detailed Solution

We know that, Breaking force  =  Breaking force  Area of cross - section              …(i)When length of the wire changes, area of cross-section remains same. Hence, breaking force will be same when length changes.
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