WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    If the mass of moon is\[\frac{1}{90}\] of earths m ass, its radius is\[\frac{1}{3}\]of earths radius and if g is acceleration due to gravity on earth, then the acceleration due to gravity on moon is ......

    A)  \[\frac{g}{3}\]                                  

    B)  \[\frac{g}{90}\]

    C)  \[\frac{g}{10}\]                                

    D)  \[\frac{g}{9}\]

    Correct Answer: C

    Solution :

                     \[{{g}_{m}}=\frac{G\times M/90}{{{(R/3)}^{3}}}=\frac{1}{10}g\]


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