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Punjab Medical Punjab - MET Solved Paper-2009

  • question_answer
    Two planets\[A\]and\[B\]have the same material density. If the radius of\[A\]is twice that of\[B\], then the ratio of escape velocity\[\frac{{{v}_{A}}}{{{v}_{B}}}\]is

    A) \[2\]                                     

    B) \[\sqrt{2}\]

    C) \[\frac{1}{\sqrt{2}}\]                                     

    D) \[\frac{1}{2}\]

    Correct Answer: A

    Solution :

    Escape velocity is given by                 \[{{v}_{e}}=\sqrt{\frac{2GM}{R}}=\sqrt{\frac{2G}{R}\times \frac{4}{3}\pi {{R}^{3}}\rho }\]


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