A wire of diameter 1 millimetre breaks under tension of 2,000 Newtons another wire of same material as that of the first one but of diameter 2millimetre breaks under the tension of
(a)500N (b)100N(c)1000N(d)4000N
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f2/f1=(d1/d2)²= f2/1000=(2mm/1mm)²=f2=1000×4=4000N
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