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BVP Medical BVP Medical Solved Paper-2014

  • question_answer
    Which particle among the following will have the smallest de-Broglie wavelength, assuming that they have the same velocity?

    A)  A positron                         

    B)  A photon

    C)  An a-particle                    

    D)  A neutron

    Correct Answer: C

    Solution :

                    The de-Broglie equation is \[\lambda =\frac{h}{p}=\frac{h}{mv}\] Here, h and v are constant. So,  \[\lambda \propto \frac{1}{m}\]. Since, the a-particle has the highest mass among the given entities, it has the smallest de-Broglie wavelength.


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