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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2005

  • question_answer
        Uncertainty in position of a particle of 25 g in space is\[{{10}^{-5}}m\]. Hence uncertainty in velocity   \[(m{{s}^{-1}})\]is (Plancks  constant\[h=6.6\times {{10}^{-34}}Js\]):

    A)  \[2.1\times {{10}^{-28}}\]           

    B)  \[2.1\times {{10}^{-34}}\]

    C)  \[0.5\times {{10}^{-34}}\]           

    D)  \[5.0\times {{10}^{-24}}\]

    Correct Answer: A

    Solution :

                    \[\Delta x.\Delta v\ge \frac{h}{4\pi m}\]


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