Which observation in the Davisson–Germer experiment provided direct evidence for the…
PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation
Problem
Which observation in the Davisson–Germer experiment provided direct evidence for the wave nature of electrons?
(a) Formation of a distinct diffraction maximum at a particular scattering angle
(b) Observation of a continuous energy spectrum for the scattered electrons
(c) Systematic shift of the angle of maximum scattering that varies linearly with the accelerating voltage
(d) Detection of electrons only when the incident beam exceeds a certain threshold frequency