JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Critical Thinking

  • question_answer
    An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy \[{{E}_{0}}\]. Its potential energy is   [IIT 1997 Cancelled; MH CET 2002; MP PMT 2000]

    A)                      \[-{{E}_{0}}\]           

    B)             \[1.5\,{{E}_{0}}\]

    C)             \[2\,{{E}_{0}}\]

    D)             \[{{E}_{0}}\]

    Correct Answer: C

    Solution :

                                Potential energy = 2 × (Total energy) = \[2{{E}_{0}}\] Because we know = \[U=\frac{-GMm}{r}\] and \[{{E}_{0}}=\frac{-GMm}{2r}\]


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