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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 33

  • question_answer
    If a satellite orbits as close to the earth's surface as possible, then which of the following statement is incorrect?

    A) Its speed is maximum

    B) Time period of its rotation is minimum

    C) The total energy of the earth plus satellite system is minimum

    D) The total energy of the earth plus satellite system is maximum

    Correct Answer: D

    Solution :

    [d] Speed \[=\sqrt{\frac{GM}{r}},\] Tine period \[=\left( \frac{2\pi }{\sqrt{GM}} \right){{r}^{3/2}},\]Total energy \[=-\frac{GMm}{2r}\]


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