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J & K CET Engineering J and K - CET Engineering Solved Paper-2013

  • question_answer
    The escape velocity of a particle from the surface of the earth is given by

    A)  \[{{(g/R)}^{1/2}}\]

    B)  \[{{(2\,gR)}^{1/2}}\]          

    C)  \[{{(3\,\,gR)}^{1/2}}\]

    D)  \[{{(\,gR/2)}^{2}}\]

    Correct Answer: B

    Solution :

    Escape velocity \[{{v}_{e}}=\sqrt{2gR}\]


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