Final answer:
Light exhibits wave-particle duality, behaving like a wave in certain experiments and like a particle in others. Matter, such as electrons, can also exhibit wave-like behavior.
Step-by-step explanation:
Light exhibits both wave-like and particle-like properties, a phenomenon known as wave-particle duality. In certain experiments, light behaves like a wave, showing interference patterns when passing through a double slit. In other experiments, light behaves like a particle, with individual packets of energy called photons. Similarly, matter, such as electrons, can also exhibit wave-like behavior, as observed in the interference patterns produced by electrons passing through a crystal lattice.