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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2007

  • question_answer
    A body of mass 10 mg is moving with a velocity of \[100\text{ }m{{s}^{-1}}\]. The wavelength of de-Broglie wave associated with it would be \[(h=6.63\times {{10}^{-34}}js)\]

    A)  \[6.63\times {{10}^{-35}}m\]

    B)  \[6.63\times {{10}^{-34}}m\]

    C)  \[6.63\times {{10}^{-31}}m\]

    D)  \[6.63\times {{10}^{-37}}m\]

    Correct Answer: C

    Solution :

    \[m=10mg=10\times {{10}^{-6}}kg\] \[v=100m{{s}^{-1}}\] \[\lambda =\frac{h}{mv}=\frac{6.63\times {{10}^{-34}}}{10\times {{10}^{-6}}\times 100}\] \[=6.63\times {{10}^{-31}}m\]


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