JIPMER Jipmer Medical Solved Paper-2000

  • question_answer
    Moment of inertia of a ring of mass m = 3 gm and radius r = 1 cm about an axis passing through its edge and parallel to its natural axis is:

    A)  \[1\text{ }gm\text{ }c{{m}^{2}}\]

    B)                                         \[6\text{ }gm\text{ }c{{m}^{2}}\]            

    C)         \[100\text{ }gm\text{ }c{{m}^{2}}\]       

    D)         \[10\text{ }gm\text{ }c{{m}^{2}}\]

    Correct Answer: B

    Solution :

    Applying theorem of parallel axis \[I=2m{{R}^{2}}\] \[I=2\times 3\times {{(1)}^{2}}=6gm\,\,c{{m}^{2}}\]


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