Uttarakhand PMT Uttarakhand PMT Solved Paper-2006

  • question_answer
    The dimensional formula for Youngs modulus is:

    A)  \[[M{{L}^{-1}}{{T}^{-2}}]\]      

    B)  \[[{{M}^{0}}L{{T}^{-2}}]\]

    C)  \[[ML{{T}^{-2}}]\]         

    D)  \[[M{{L}^{2}}{{T}^{-2}}]\]

    Correct Answer: A

    Solution :

     The formula for the Youngs modulus \[Y=\frac{stress}{strain}\] Dimensions of \[Y=\frac{[M{{L}^{-1}}{{T}^{-2}}]}{[{{M}^{0}}{{L}^{0}}{{T}^{0}}]}=[M{{L}^{-1}}{{T}^{-2}}]\]


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