BHU PMT BHU PMT (Screening) Solved Paper-2007

  • question_answer
    In a radioactive decay, an emitted electron comes from

    A)  the nucleus of atom

    B)  the orbit with principal quantum number

    C)  the inner orbital of the atom

    D)  the outer most orbit of the atom

    Correct Answer: A

    Solution :

                     A radioactive decay is a phenomenon of unstable nucleus of atom.\[\alpha ,\beta \]and\[\gamma \]particles emits from the nucleus.\[\beta \]particles likes electrons emits from the nucleus of atom.


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