Is Light a Particle or a Wave?
After a series of experiments through the long years, scientists believe that light can be a particle or a wave. Light behaves like a particle at times and like a wave at other times. This duality is revealed by quantum mechanics. This particle-like behavior of light is supported by the idea that it is made up of photons which can be explained through the photoelectric effect. It can also behave like a wave as it produces interference patterns which are believed only waves can do.
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