Multiple choice general knowledge

Which two quarks have the lowest masses of all quarks?

  1. Up

  2. Down

  3. A & B

  4. None
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The up quark is the lightest quark with mass ~2.2 MeV/c^2, followed closely by the down quark at ~4.7 MeV/c^2. All other quarks (charm, strange, top, bottom) are significantly heavier. Option C correctly identifies both light quarks.

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