The Davisson–Germer experiment provided the first direct evidence for the wave nature…
PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
The Davisson–Germer experiment provided the first direct evidence for the wave nature of electrons.
(i) State the key qualitative observation made by Davisson and Germer regarding the variation of the scattered electron intensity with the angle of detection.
(ii) Explain how this observation establishes the wave character of electrons.
(iii) Compare the angular positions and general appearance of the electron diffraction maxima with those obtained when X-rays of suitable wavelength are diffracted by the same crystal.