What is the significance of the Davisson-Germer experiment in the development of quantum mechanics?
It provided the first evidence for the wave-particle duality of matter.
It provided the first evidence for the existence of subatomic particles.
It provided the first evidence for the existence of blackbody radiation.
It provided the first evidence for the photoelectric effect.
The Davisson-Germer experiment provided the first direct evidence for the wave-particle duality of matter. It showed that electrons could exhibit wave-like behaviour and interference patterns just like light waves, providing a crucial piece of evidence for the development of quantum mechanics. The Davisson-Germer experiment, conducted in 1927 by American physicist Clinton Davisson and his colleague, Lester Germer, played a crucial role in the development of quantum mechanics. The experiment provided evidence for the wave-particle duality of matter, which is one of the key principles of quantum mechanics.