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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Nucleus, Nuclear Reaction

  • question_answer
    In nuclear reaction \[_{2}H{{e}^{4}}{{+}_{z}}{{X}^{A}}{{\to }_{z+2}}{{Y}^{A+3}}+A,\ A\]  denotes                                                  [CPMT 1997]

    A)            Electron                                 

    B)            Positron

    C)            Proton                                    

    D)            Neutron

    Correct Answer: D

    Solution :

                       The given equation is \[_{2}H{{e}^{4}}{{+}_{z}}{{X}^{A}}{{\to }_{z+2}}{{Y}^{A+3}}+A\]                    Applying charge and mass conservation                    \[4+A=A+3+x\Rightarrow x=1\]Þ \[2+z=z+2+n\Rightarrow n=0\]                    Hence A is a neutron.


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