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Interstellar Alchemy

Electron-posi...

Question

Electron-positron pair can be created by $γ$ -rays. In this process the minimum energy of $γ$ -rays should be :

A

5.0 M e V

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B

4.02 M e V

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C

15.0 M e V

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D

1.02 M e V

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Solution

The correct option is A $5.0 M e V$
A
The minimum energy of $γ$ -rays created by electron - positron pair is 5.0 MeV.

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