Light behaves as both a wave and a particle from "summary" of Fundamentals of Physics, Volume 1 (Chapters 1 - 20) by David Halliday,Robert Resnick,Jearl Walker
In the realm of physics, the nature of light has long been a subject of fascination and debate. One of the most intriguing aspects of light is its dual behavior as both a wave and a particle. This duality, known as wave-particle duality, challenges our conventional understanding of particles and waves as distinct entities. As a wave, light exhibits characteristic behaviors such as interference and diffraction. Interference occurs when two or more light waves combine to either reinforce or cancel each other out, creating a pattern of bright and dark spots. Diffraction, on the other hand, refers to the bending of light waves around obstacles, leading to the spreading out of light waves. However, light also displays particle-like properties, most notably in the phenomenon of the photoelectric effect. In the photoelectric effect, light shining on a metal surface can eject electrons from the surface, similar to how particles would interact with matter....
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