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A free nucleus of mass 24 amu emits a ga...

A free nucleus of mass `24` amu emits a gamma photon (when initially at rest). The energy of the photon is `7 MeV`. The recoil energy of the nucleus in `KeV` is (Assuming `1 "amu"=931 MeV`).

A

`2.2`

B

`1.1`

C

`3.1`

D

`22`

Text Solution

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Use conservation of linear momentum
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