The Broglie waves and electron diffraction
What can be concluded from Figure 39.3? How did Davisson and
Germer know what the value of d is in the diffraction law of the Ni
crystal? What does m mean in the diffraction law?
The Broglie Waves And Electron Diffraction What Can Be Concluded From Figure 39 3 How Did Davisson And Germer Know What 1 (33.16 KiB) Viewed 24 times
Figure 39.3 (a) Intensity of the scattered electron beam in Fig. 39.2 as a function of the scattering angle 0. (b) Electron waves scattered from two adjacent atoms interfere constructively when dsin0 = mA. In the case shown here, 0 = 50° and m = 1. (a) This peak in the intensity of scattered electrons is due to constructive interference between electron waves scattered by different surface atoms. Vba = 54 V o (b) 0= 50° 45° 60° 75° 90° 15° 30° If the scattered waves are in phase, there is a peak in the intensity of scattered electrons. Incident waves in phase ✓ Atoms on surface of crystal 50°
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