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

  • question_answer
    The masses of neutron and proton are 1.0087 a.m.u. and 1.0073  a.m.u. respectively. If the neutrons and protons combine to form a helium nucleus (alpha particles) of mass 4.0015 a.m.u. The binding energy of the helium nucleus will be (1 a.m.u.= 931MeV)

    A) 28.4  MeV

    B) 20.8  MeV

    C) 27.3  MeV

    D) 14.2  MeV

    Correct Answer: A

    Solution :

    [a] B.E.= Dmc2 \[=[2(1.0087+1.0073)-4.0015]=28.4\ MeV\]


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