Nuclei · Radioactivity and nuclear energy
Two radioactive substances A and B of mass numbers 200 and 212 respectively, show spontaneous -decay with same Q value of 1 MeV. The ratio of energies of -rays produced by A and B is .
- (1)
- (2)
- (3)
- (4)
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See the full 8 Apr 2026, Shift 2 paper
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