JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Conservation of Energy and Momentum

  • question_answer
    If the momentum of a body is increased n times, its kinetic energy increases

    A)                 n times

    B)                    2n times

    C)                 \[\sqrt{n}\]times

    D)                    \[{{n}^{2}}\] times

    Correct Answer: D

    Solution :

                        \[E=\frac{{{P}^{2}}}{2m}\] \ \[E\propto {{P}^{2}}\]                 i.e. if P is increased n times then E will increase n2 times.


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