Railways Basic Science and Engineering Units and Measurements / मात्रक और मापन Question Bank Unit and Measurements

  • question_answer
    Unit of surface tension is

    A) \[N{{m}^{-1}}\]                 

    B) \[N{{m}^{-2}}\]

    C) \[{{N}^{2}}{{m}^{-1}}\]              

    D) \[N{{m}^{-3}}\]

    Correct Answer: A


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