Physics (AS & A Level) · May / June 2026 · Paper 13 · Question 39
9702Atoms, nuclei and radiation
A nucleus undergoes β+ decay. A neutrino and two other particles are produced in this decay. Which other two particles are produced?
- Apositron ✓, electron ✗, proton ✗, neutron ✓
- Bpositron ✗, electron ✓, proton ✓, neutron ✗
- Cpositron ✗, electron ✓, proton ✗, neutron ✓
- Dpositron ✓, electron ✗, proton ✓, neutron ✗
As printed in the paper
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Correct answer: A. positron ✓, electron ✗, proton ✗, neutron ✓
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