Final answer:
Electromagnetic radiation, such as visible light, is an example of something that exhibits both wave-like and particle-like behavior. This is known as wave-particle duality.
Step-by-step explanation:
Electromagnetic radiation is an example of something that exhibits both wave-like and particle-like behavior. Electromagnetic radiation, such as visible light, can be described as a wave that undergoes interference and diffraction. However, it can also be modeled as particles called photons, which have discrete energy and momentum. This phenomenon is known as wave-particle duality, where electromagnetic radiation shows properties of both waves and particles depending on the experimental conditions.