The following four wires are made of same material. Which one will have the largest elongation when subjected to the same tension ?

  • A

    Length $500\,cm,$ diameter $0.05\,mm$

  • B

    Length $200\,cm,$ diameter $0.02\,mm$

  • C

    Length $300\,cm,$ diameter $0.03\,mm$

  • D

    Length $400\,cm,$ diameter $0.01\,mm$

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