Physics 9702 · AS & A Level · Fundamental particles

Fundamental particles — practice question

Some particles consist of three quarks. Which combination of quarks would not produce a particle with a charge of either $+1.6 \times 10^{-19}\,\text{C}$ or zero?

  • Aup, down, down
  • Bup, strange, strange
  • Cup, up, down
  • Dup, up, up

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