Selected MCQ

Current Question
Which phenomenon causes tides?
  • A. Solar radiation
  • B. Wind
  • C. Gravitational pull of moon
  • D. Earth rotation only
Correct Answer: C
Explanation:
Moon’s gravity drives tidal effects.
Related Question 1
Which phenomenon is explained by spontaneous symmetry breaking?
  • A. Refraction
  • B. Superconductivity
  • C. Diffusion
  • D. Reflection
Correct Answer: B
Explanation:
Superconductivity arises from broken gauge symmetry.
Related Question 2
Which gas causes global warming?
  • A. Oxygen
  • B. Nitrogen
  • C. CO₂
  • D. Helium
Correct Answer: C
Explanation:
CO₂ traps heat.
Related Question 3
Which phenomenon demonstrates quantization of angular momentum?
  • A. Diffraction
  • B. Zeeman effect
  • C. Photoelectric effect
  • D. Reflection
Correct Answer: B
Explanation:
Zeeman splitting arises from quantized angular momentum states.
Related Question 4
Which phenomenon proves quantization of charge?
  • A. Photoelectric effect
  • B. Millikan oil drop experiment
  • C. Compton scattering
  • D. Interference
Correct Answer: B
Explanation:
Oil drop experiment measured discrete electron charge.
Related Question 5
Which boundary causes earthquakes?
  • A. Divergent
  • B. Convergent
  • C. Transform
  • D. All
Correct Answer: D
Explanation:
All plate boundaries can generate earthquakes.