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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 increases by 0.01%, its kinetic energy will increase by            [MP PET 2001]

    A)                 0.01%   

    B)                 0.02%

    C)                 0.04%   

    D)                 0.08%

    Correct Answer: B

    Solution :

                        \[E\propto {{P}^{2}}\] (if m = constant) Percentage increase in E = 2(Percentage increase in P)                                        = 2 × 0.01%=0.02%


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