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JIPMER Jipmer Medical Solved Paper-2012

  • question_answer
    The potential energy of a body is given by \[U=A-B{{x}^{2}}\] (where x is the displacement.) The magnitude of force acting on the particle is

    A)  constant

    B)  proportional to \[x\]

    C)  proportional to \[{{x}^{2}}\]

    D)  inversely proportional to\[x\]

    Correct Answer: B

    Solution :

    \[U=A-B{{x}^{2}}\] \[F=-\frac{dU}{dv}=+2Bx,\] \[F\propto x.\]


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