CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2005

  • question_answer
    Which one of the following is not a unit of Youngs modulus?

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

    B)  \[N{{m}^{-2}}\]

    C)  dyne \[c{{m}^{-2}}\]                     

    D)  mega pascal

    Correct Answer: A

    Solution :

    \[y=\frac{stress}{strain}=N/{{m}^{2}}\] or pascal (in SI system) and                        \[y=\frac{dyne}{c{{m}^{2}}}\] (in C.G.S. system) Thus, \[N{{m}^{-1}}\] is not the unit of Youngs modulus.


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