The Consequences of Wave-Particle Duality

Broglie wavelength (Equation 5.34) is not. Countless experiments have shown that particles really do have a wavelength. 

Light source (broadband slits smaller than X)  

Maxima and minima for large n are at different positions for different wavelengths, so most fringes fade. 

Different positions within the slits give different values for Di and D2, so all fringes fade. 

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