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Four wires made of the same material are...

Four wires made of the same material are stretched by the same load. Their dimensions are given below. Which one will be elongated most?

A

length 1m, diameter 1mm

B

length 2m, diameter 2mm

C

length 3m, diameter 3mm

D

length 4m, diameter 0.5 mm

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The correct Answer is:
D
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