What do you understand by the term wave-particle duality? Where d… - Vidyadip

Question

What do you understand by the term wave-particle duality? Where does it apply?

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Answer

Depending upon experimental conditions or structure of matter, electromagnetic radiation and material particles exhibit wave nature or particle nature. This is known as wave-particle duality.It applies to all phenomena. The wave nature and particle nature are liked by the de Broglie relation $\lambda = h/p$, where $\lambda $ is the wavelength of matter waves, also called de Broglie waves / Schrodinger waves, p is the magnitude of the momentum of a particle or quantum of radiation and h is the universal constant called Planck’s constant.
[Note : It is the smallness of $h (= 6.63 \times 10^{-34} J∙s)$ that is very significant in wave-particle duality.]

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