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There is a lot of reading to do on this to fully understand it, but without doing that reading is there a short explanation as to why and how light behaves as a wave and a particle?

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See here : youtube.com/watch?v=uK2eFv7ne_Q –  nonagon May 13 '13 at 8:21

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The interference patterns of light show the wave nature of light.

two point sources

Optical interference between two point sources for different wavelengths and source separations

The photoelectric effect shows the particle nature of light, because light hits an electron and transfers its energy to the electron.

This link gives an clear explanation and can be a start in understanding the reason light is also a particle, the photon:


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