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

  • question_answer
    A light and a heavy body have equal momenta. Which one has greater K.E                                 [MP PMT 1985; CPMT 1985; Kerala PMT 2004]

    A)                 The light body  

    B)                 The heavy body

    C)                 The K.E. are equal           

    D)                 Data is incomplete

    Correct Answer: A

    Solution :

                        \[E=\frac{{{P}^{2}}}{2m}\] if P = constant then\[E\propto \frac{1}{m}\]


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