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I'm studying the wave-particle duality, more specifically the matter-wave function of de Broglie:

[itex]\Psi[/itex](x,t)=A sin 2[itex]\pi[/itex]([itex]\frac{x}{\lambda}[/itex]-[itex]\nu[/itex] t)

where [itex]\lambda[/itex] is the de Broglie wave-length and [itex]\nu[/itex] is the frequency.

The interpretation of this wave is that, [itex]\Psi^{2}[/itex] would be the probability of finding the particle in a certain region of space and time.

For this to be true, we assume that a point font of radiation emits photons randomly and in all directions.

I want to know:why is the emission random?.

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# Random photon emission

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