A free nucleus of mass 24 amu emits a gramma photon (when initially at rest). The energy of the photon is 7 MeV. Then momentum of the nucleus will be (apprx)
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a
5.25×10−20 kg−m/s
b
8.65×10−18 kg−m/s
c
3.5×10−21 kg−m/s
d
6.625×10−21 kg−m/s
answer is C.
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Detailed Solution
Linear momentum of the free nucleus = Linear momentum of the photon=EC=7×106×1.6×10−193×108 kg−m/s=3.5×10−21 kg−m/s
A free nucleus of mass 24 amu emits a gramma photon (when initially at rest). The energy of the photon is 7 MeV. Then momentum of the nucleus will be (apprx)