NEET Physics Nuclei Questions Solved


γ-rays radiation can be used to create electron-positron pair. In this process of pair production, γ-rays energy cannot be less than 
(a) 5.0 MeV                (b) 4.02 MeV
(c) 15.0 MeV               (d) 1.02 MeV

(d) Energy released by γ-rays for pair production must be greater than 1.02 MeV.

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