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JCECE Medical JCECE Medical Solved Paper-2014

  • question_answer
    The height vertically above the earths surface at which the acceleration due to gravity becomes 1% of its value at the surface is (R is the radius of the earth)

    A)  QR    

    B)  9R    

    C) 10R   

    D)  20R

    Correct Answer: B

    Solution :

     \[g=\frac{g}{{{\left( 1+\frac{h}{R} \right)}^{2}}}\]\[\Rightarrow \]\[\frac{g}{100}=\frac{g}{{{\left( 1+\frac{h}{R} \right)}^{2}}}\] \[{{\left( 1+\frac{h}{R} \right)}^{2}}=100\] \[h=9R\]


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