NEET Sample Paper NEET Sample Test Paper-76

  • question_answer
    A body executing SHM with an amplitude A. At what displacement from the mean position is potential energy of the body is one-fourth of its total energy

    A)  \[\frac{A}{4}\]                         

    B)  \[\frac{A}{2}\]

    C)  \[\frac{3A}{4}\]                                   

    D)  None of these

    Correct Answer: B

    Solution :

    According to question, \[\operatorname{Potential} energy = \frac{1}{4} \left( total energy \right)\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\frac{1}{2}m{{\omega }^{2}}{{y}^{2}}=\frac{1}{4}\left( \frac{1}{2}m{{\omega }^{2}}{{A}^{2}} \right)\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,y=\frac{A}{2}\]


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