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  4. γ -rays radiation can be used to create electron-positron pair. In this process of pair production, γ -rays energy cannot be less than

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Q. $\gamma $ -rays radiation can be used to create electron-positron pair. In this process of pair production, $\gamma $ -rays energy cannot be less than

NTA AbhyasNTA Abhyas 2020

Solution:

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