Selected MCQ

Current Question
Which interaction is responsible for beta decay?
  • A. Strong
  • B. Weak
  • C. Electromagnetic
  • D. Gravitational
Correct Answer: B
Explanation:
Weak interaction governs beta decay.
Related Question 1
Which gas is responsible for photochemical smog?
  • A. O₂
  • B. NO₂
  • C. CO₂
  • D. N₂
Correct Answer: B
Explanation:
Nitrogen dioxide forms smog.
Related Question 2
Which interaction has shortest range?
  • A. Gravitational
  • B. Electromagnetic
  • C. Weak
  • D. Strong
Correct Answer: C
Explanation:
Weak force acts over very short distances.
Related Question 3
Which interaction binds quarks together?
  • A. Electromagnetic
  • B. Weak
  • C. Strong
  • D. Gravitational
Correct Answer: C
Explanation:
Strong force confines quarks.
Related Question 4
In quantum electrodynamics, the interaction between charged particles is mediated by:
  • A. Gluons
  • B. Photons
  • C. Gravitons
  • D. W bosons
Correct Answer: B
Explanation:
Electromagnetic interactions occur via exchange of virtual photons.
Related Question 5
Which particle participates in weak interaction?
  • A. Photon
  • B. Gluon
  • C. W boson
  • D. Graviton
Correct Answer: C
Explanation:
W boson mediates weak force.