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Question: γ-rays radiation can be used to create electron-positron pair. In this process of pair production, γ...

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

Answer

1.02 MeV

Explanation

Solution

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