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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 25

  • question_answer
    A satellite is launched into a circular orbit of radius R around the earth. A second satellite is launched into an orbit of radius\[(1.01)R\]. The period of the second satellite is larger than that of the first one by approximately

    A) \[0.5%\]                 

    B)       \[1.0%\]                 

    C) \[1.5%\]       

    D)        \[3.0%\]

    Correct Answer: C

    Solution :

    [c] In the problem orbital radius is increased by 1%. Time period of satellite \[T\propto {{r}^{3/2}}\] Percentage change in time period \[=\frac{3}{2}\] (% change in orbital radius) \[=\frac{3}{2}(1%)=1.5%\]         


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