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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

`128`

D

`0.14`

Text Solution

Verified by Experts

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