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A-LevelPhysicsParticle physics9702/12 · Feb/Mar 2017 · Q401 Mark

A neutron decays to form a proton. Which particle is not involved in the decay process?

Aantineutrino
Bdown quark
Cpositron
Dup quark

✓ Correct answer

C: positron

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About this question

Topic
Particle physics, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source
A-Level Physics, Feb/Mar 2017 Paper 1 Variant 2, question 40.

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