Selected MCQ

Current Question
Which phenomenon confirms wave nature of electrons?
  • A. Photoelectric effect
  • B. Electron diffraction
  • C. Compton effect
  • D. Pair production
Correct Answer: B
Explanation:
Electron diffraction demonstrates wave behavior.
Related Question 1
Which phenomenon demonstrates light’s wave nature most directly?
  • A. Photoelectric effect
  • B. Compton scattering
  • C. Diffraction
  • D. Pair production
Correct Answer: C
Explanation:
Diffraction is a characteristic wave interference effect.
Related Question 2
Which phenomenon confirms existence of neutrinos?
  • A. Photoelectric effect
  • B. Beta decay energy spectrum
  • C. Reflection
  • D. Diffraction
Correct Answer: B
Explanation:
Missing energy in beta decay led to neutrino hypothesis.
Related Question 3
Which bond involves delocalized electrons?
  • A. Ionic
  • B. Covalent
  • C. Metallic
  • D. Hydrogen
Correct Answer: C
Explanation:
Metallic bonding has electron sea.
Related Question 4
Which wave shows polarization?
  • A. Sound
  • B. Light
  • C. Water
  • D. Seismic
Correct Answer: B
Explanation:
Only transverse waves polarize.
Related Question 5
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.