Physics - Modern Physics - Quantum Physics - Wave-particle duality - Is Light a Wave or Particle?
Present evidence on both sides. 'WAVE evidence: (1) Double-slit experiment shows interference. (2) Light diffracts around edges. (3) Polarization. PARTICLE evidence: (1) Photoelectric effect - light knocks out electrons in discrete chunks. (2) Compton scattering - photons bounce off electrons like b