Since it involved (*) diffraction by a crystal lattice, its results aligned with those predicted by Bragg's law.
Replication of this experiment by Thomson involved measuring diffraction pattern on a photographic plate. This experiment yielded the peak intensity at 54V and 50 degrees, and the experimenters predicted that measured wavelength would be proportional to the inverse of the square root of voltage. Since it involved (*) diffraction by a crystal lattice, its results aligned with those predicted by Bragg's law. This experiment involved firing electrons at a nickel surface and measuring the reflection at various angles with a Faraday box mounted on an arc. For 10 points, name this experiment that supported the de Broglie hypothesis by demonstrating the wave nature of matter.
Replication of this experiment by Thomson involved measuring diffraction pattern on a photographic plate.
Davisson-Germer experiment 