WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    The dimensions of kinetic energy is

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

    B)  \[[M{{L}^{2}}T]\]

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

    D)  \[[M{{L}^{2}}{{T}^{-1}}]\]

    Correct Answer: C

    Solution :

                     \[KE=\frac{1}{2}m{{v}^{2}}\] \[\therefore \]  \[[KE]=[M]{{[L{{T}^{-1}}]}^{2}}=[M{{L}^{2}}{{T}^{-2}}]\]


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