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Other experiments, such as the [[photoelectric effect]] can only be explained assuming light consists of particles. So along with the [[photoelectric effect]], this experiment demonstrates the [[wave-particle duality]] of light.

Other experiments, such as the [[photoelectric effect]] can only be explained assuming light consists of particles. So along with the [[photoelectric effect]], this experiment demonstrates the [[wave-particle duality]] of light.

The experiment can also be done with particles such as [[electron]]s. When many (perhaps 1000) they are accelerated at two slits, an interference pattern emerges. This shows the wave-like nature of [[matter]]. [[Wave-particle duality]] was proposed in 1924 by Louis De Broglie, as he considered if light can behave as particles, should the reverse be true.<ref>http://www.nobelprize.org/nobel_prizes/physics/laureates/1929/broglie-bio.html</ref> The [[wavelength]] of a particle can be found as:

The experiment can also be done with particles such as [[electron]]s. When many (perhaps 1000) they are accelerated at two slits, an interference pattern emerges. This shows the wave-like nature of [[matter]]. [[Wave-particle duality]] was proposed in 1924 by Louis De Broglie, as he considered if light can behave as particles, should the reverse be true.<ref>https://www.nobelprize.org/nobel_prizes/physics/laureates/1929/broglie-bio.html</ref> The [[wavelength]] of a particle can be found as:

<math>\lambda = \frac{h}{p} </math>

<math>\lambda = \frac{h}{p} </math>