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Gell-Mann discovers quark
  • 1. Who discovered quarks?
A) Richard Feynman
B) Murray Gell-Mann
C) Erwin Schrödinger
D) Niels Bohr
  • 2. Which group of particles did Gell-Mann propose were made up of quarks?
A) Leptons
B) Hadrons
C) Fermions
D) Bosons
  • 3. What are the three types of quarks identified by Gell-Mann initially?
A) Red, Blue, Green
B) Electron, Proton, Neutron
C) Up, Down, Strange
D) Photon, W, Z
  • 4. Which experiment provided the evidence for the existence of quarks?
A) Deep inelastic scattering
B) Davisson-Germer experiment
C) Double-slit experiment
D) Photoelectric effect
  • 5. Quarks are never observed in isolation due to what phenomenon?
A) Confinement
B) Disintegration
C) Decay
D) Annihilation
  • 6. What is the color charge of a quark?
A) Red, Blue, or Green
B) Black
C) Positive
D) Yellow
  • 7. The down quark has what kind of electric charge?
A) -1/3
B) +1/3
C) -2/3
D) +2/3
  • 8. Protons and neutrons are composed of which quarks?
A) Red and blue quarks
B) Strange and charm quarks
C) Top and bottom quarks
D) Up and down quarks
  • 9. What is the third 'strangeness' quantum number in particle physics used to classify quarks?
A) Spin
B) Flavor
C) Isospin
D) Charm
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