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VMMC VMMC Medical Solved Paper-2013

  • question_answer
    Earth is revolving around the sun. If the distance of the earth from the sun is reduced to 1/4th of the present distance, then the length of present day will be reduced by

    A)  1/4     

    B)  1/2     

    C)  1/8     

    D)  1/6

    Correct Answer: C

    Solution :

     \[{{T}^{2}}\propto {{a}^{2}}\] \[a=a/4\] \[\therefore \] \[\frac{{{T}^{2}}}{{{T}^{2}}}=\frac{{{a}^{3}}}{{{(a/4)}^{3}}}={{(4)}^{3}}\] \[T=\frac{T}{{{(4)}^{3/2}}}=T/8\]


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