Observations of Davisson Germer experiment
We may draw the following conclusions from this experiment:
- Only the existence of an electron in the form of a particle may be detected by the detector utilised here. As a consequence, the detector receives electrons as an electronic current.
- The intensity (strength) of the electronic current received by the detector, as well as the scattering angle, are being investigated. This current is referred to as the electron intensity.
- The dispersed electrons intensity is not constant. It displays a maximum and the lowest value that correspond to the maxima and minima of an X-ray diffraction pattern.
- By varying the angle of scattering (θ), we were able to get a change in the intensity (I) of the scattered electrons.
- The accelerated voltage was adjusted from 44V to 68V by varying the accelerating potential difference. We could detect a significant peak in the intensity (I) of the scattered electron with an accelerating voltage of 54 V at a scattering angle of 50°.
- This peak was caused by the constructive interference of electrons dispersed from various layers of the crystal’s evenly spaced atoms. The wavelength of matter waves was determined using electron diffraction to be 0.165 nm.
Davisson-Germer Experiment
Davisson Germer Experiment established the wave nature of electrons and validated the de Broglie equation for the first time. De Broglie proposed the dual nature of the matter in 1924, but it wasn’t until later that Davisson and Germer’s experiment confirmed the findings. The findings provided the first experimental verification of quantum mechanics. We shall investigate the scattering of electrons by a Ni crystal in this experiment. Let us investigate more.
Table of Content
- Construction of Davisson Germer Experiment
- Working of Davisson Germer experiment
- Observations of Davisson Germer experiment
- The Idea Behind the Experiment Setup
- Davisson and Germer Experiment Results
- Sample Questions of Davisson Germer Experiment