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J & K CET Medical J & K - CET Medical Solved Paper-2006

  • question_answer
    A T joint is formed by two identical rods A and B each of mass m and length L in the XY plane as shown. Its moment of inertia about axis coinciding with A is :

    A) \[\frac{2m{{L}^{2}}}{3}\]                                              

    B) \[\frac{m{{L}^{2}}}{12}\]

    C) \[\frac{m{{L}^{2}}}{6}\]                                

    D)  none of these

    Correct Answer: C

    Solution :

                     \[I={{I}_{x}}+{{I}_{y}}=\frac{m{{L}^{2}}}{12}=\frac{m{{L}^{2}}}{12}=\frac{m{{L}^{2}}}{6}\]


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