A-LevelPhysicsNuclear physics9702/12 · Oct/Nov 2018 · Q391 Mark

A proton in a nucleus undergoes β⁺ decay. One of the products is a neutron. What are the other products?

Aan electron and a neutrino

Ban electron and an antineutrino

Cpositron and a neutrino

Dpositron and an antineutrino

✓ Correct answer

C: positron and a neutrino

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Topic: Nuclear physics, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2018 Paper 1 Variant 2, question 39.

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