NEET Sample Paper NEET Sample Test Paper-10

  • question_answer
    There is a flat uniform triangular plate ABC such that \[AB=4cm,\text{ }ABC=3cm\] and \[\angle ABC={{90}^{o}},\]as shown in figure. The moment of inertia of the plate about AB, BC and CA is axis is respectively \[{{l}_{1}}{{l}_{2}}\] and \[{{l}_{3}}\]. The incorrect statement is:                        

    A)              \[{{l}_{3}}<{{l}_{2}}\]                       

    B)  \[{{l}_{2}}>{{l}_{1}}\]

    C)                  \[{{l}_{3}}<{{l}_{1}}\]                    

    D)  \[{{l}_{3}}>{{l}_{2}}\]

    Correct Answer: D

    Solution :

    The moment of inertia about smallest side is maximum as effective distance of mass is more                                 \[{{l}_{2}}>{{l}_{1}}>{{l}_{3}}\]


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