RAJASTHAN PMT Rajasthan - PMT Solved Paper-2008

  • question_answer
    The de-Broglie wavelength of a tennis ball of mass \[60\,\,g\] moving with a velocity of \[10\,\,m/s\] is approximately (Plancks constant, \[h=6.63\times {{10}^{-34}}\,\,Js)\]

    A) \[{{10}^{-33}}m\]                            

    B)        \[{{10}^{-31}}m\]

    C)        \[{{10}^{-16}}m\]                            

    D)        \[{{10}^{-25}}m\]

    Correct Answer: A

    Solution :

    \[\lambda =\frac{h}{mv}=1.105\times {{10}^{-33}}m\]


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