Give three observations in support… | Physics

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Give three observations in support of de Broglie's assumption that moving particles behave like waves.

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Three observations supporting de Broglie's assumption that moving particles behave like waves:

Davisson-Germer experiment: electrons scattered from a nickel crystal gave a diffraction pattern with definite intensity peaks, just like waves diffracted by a grating; the wavelength found agreed with \(\lambda = \dfrac{h}{mv}\).
G. P. Thomson's experiment: electrons passed through a thin metal foil produced concentric diffraction rings on a photographic plate, similar to those given by X-rays, confirming electron diffraction.
The electron microscope: it works because fast electrons have a very short (wave) wavelength, allowing it to resolve objects far smaller than an optical microscope can.

Give three observations in support of de Broglie's assumption that moving particles behave like waves.