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A gamma ray photon creates an electron-p...

A gamma ray photon creates an electron-positron pair. If the rest mass energy of an electron is `0.5 MeV` and the total `K.E.` of the electron-position pair is `0.78 MeV`, then the energy of the gamma ray photon must be.

A

1.78

B

0.28

C

1.28

D

0.14

Text Solution

Verified by Experts

The correct Answer is:
A
`E_(gamma)=2(E_(k)+E_(0))`
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