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BCECE Engineering BCECE Engineering Solved Paper-2011

  • question_answer
                                     If an artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of the escape velocity from the earth, the height of the satellite above the surface of the earth is

    A)  \[2R\]                                                  

    B) \[\frac{R}{2}\]                                  

    C)  \[R\]   

    D)        \[\frac{R}{4}\]

    Correct Answer: C

    Solution :

                                    According to question, \[\sqrt{\frac{GM}{R+h}}=\frac{1}{2}\sqrt{\frac{2GM}{R}}\] \[h=R\]


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