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NTSE Sample Paper NTSE SAT Practice Test-8

  • question_answer
    Two bars of copper having same length but unequal cross sections are heated to the same temperature. The change in length will be

    A) Equal in both bars

    B) More in thicker bar

    C) More in thinner bar

    D) Nothing can be decided

    Correct Answer: A

    Solution :

    [a] The change in length is independent of area of cross section


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