The Student Room Group

De Broglie wavelength

I don't think I was taught this but why does the de Broglie wavelength needs to be equal to the path difference for constructive interference
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Reply 1
Do you know how double slit interference works for light waves or surface waves in water?

This is a question about wave-like behaviour of particles - moving particles act like waves, and the wavelength of the waves particles act like is given by the deBroglie equation.

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