J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    In beta minus decay a neutron transforms with the nucleus according to.

    A)  \[p\to n+{{e}^{+}}+v\]  

    B)  \[n\to p+{{e}^{-}}+\bar{v}\]

    C)  \[n\to p+{{e}^{+}}+\bar{v}\]

    D)  \[n\to p+{{e}^{+}}+v\]

    Correct Answer: C

    Solution :

    A beta minus particle \[{{\beta }^{-}}\] is an electron. Emission of \[{{\beta }^{-}}\] involves transformation of a neutron into a proton, an electron and a third particle called an antineutrino. \[n=p{{+}_{-1}}{{\beta }^{0}}+\bar{v}\] or \[n\to p+{{e}^{-}}+\bar{v}\]


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