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

  • question_answer
     g-rays radiation can be used to create electron-positron pair. In this process of pair production, g-rays energy cannot be less than                                                    [MP PMT 1994]                            

    A)            5.0 MeV                                 

    B)            4.02 MeV

    C)            15.0 MeV                               

    D)            1.02 MeV

    Correct Answer: D

    Solution :

               Energy released by \[\gamma -\]rays for pair production must be greater than 1.02 MeV.


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