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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Topic Test - Nuclear Physics and Radioactivity

  • question_answer
    \[{{M}_{n}}\] and \[{{M}_{p}}\] represent mass of neutron and proton respectively. If an element having atomic mass M has N-neutron and Z-proton, then the correct relation will be      

    A) \[M<[N{{M}_{n}}+Z{{M}_{P}}]\]

    B) \[M>[N{{M}_{n}}+Z{{M}_{P}}]\]

    C) \[M=[N{{M}_{n}}+Z{{M}_{P}}]\]

    D) \[M=N[{{M}_{n}}+{{M}_{P}}]\]

    Correct Answer: A

    Solution :

    [a] Actual mass of the nucleus is always less than total mass of nucleons so \[M<(N{{M}_{n}}+Z{{m}_{p}})\].


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