Selected MCQ

Current Question
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 1
Which state of matter has long-range order but flows?
  • A. Solid
  • B. Liquid crystal
  • C. Gas
  • D. Plasma
Correct Answer: B
Explanation:
Liquid crystals combine order and fluidity.
Related Question 2
Which interaction binds quarks together?
  • A. Electromagnetic
  • B. Weak
  • C. Strong
  • D. Gravitational
Correct Answer: C
Explanation:
Strong force confines quarks.
Related Question 3
Which force has infinite range?
  • A. Weak
  • B. Strong
  • C. Electromagnetic
  • D. Strong nuclear
Correct Answer: C
Explanation:
EM force acts over infinite distance.
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 interaction is responsible for beta decay?
  • A. Strong
  • B. Weak
  • C. Electromagnetic
  • D. Gravitational
Correct Answer: B
Explanation:
Weak interaction governs beta decay.