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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    If two masses\[{{m}_{1}}\]and\[{{m}_{2}}\]are dropped freely from the heights\[{{h}_{1}}\]and\[{{h}_{2}}\]respectively, then the ratio of times to reach on earth will be

    A)  \[\sqrt{\frac{{{h}_{2}}}{{{h}_{1}}}}\]              

    B)  \[\sqrt{\frac{{{h}_{1}}}{{{h}_{2}}}}\]

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

    D)  \[\sqrt{\frac{{{m}_{2}}}{{{m}_{1}}}}\]

    Correct Answer: B

    Solution :

     \[t=\sqrt{\frac{2h}{g}}\] \[\therefore \] \[\frac{{{t}_{1}}}{{{t}_{2}}}=\sqrt{\frac{{{h}_{1}}}{{{h}_{2}}}}\]


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