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In an experiment, Davisson and Germer used electrons incident normally on a nickel crystal surface cut parallel to the principal Bragg planes. They observed constructive interference at an angle of 50 degrees to the normal to the surface. Find the wavelength associated with the electron beam. The inter atomic spacing of Ni is 2.15 Å. The given answer in my homework assignment is approximately 1.65 Å.

In an experiment, Davisson and Germer used electrons incident normally on a nickel crystal surface cut parallel to the principal Bragg planes. They observed constructive interference at an angle of 50 degrees to the normal to the surface. Find the wavelength associated with the electron beam. The inter atomic spacing of Ni is 2.15 Å. The given answer in my homework assignment is approximately 1.65 Å.

University Physics Volume 3
University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter7: Quantum Mechanics
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Problem 90CP: In STM, an elevation of the tip above the surface being scanned can be determined with a great...
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In an experiment, Davisson and Germer used electrons incident normally on a nickel crystal surface cut parallel to the principal Bragg planes. They observed constructive interference at an angle of 50 degrees to the normal to the surface. Find the wavelength associated with the electron beam. The inter atomic spacing of Ni is 2.15 Å. The given answer in my homework assignment is approximately 1.65 Å.
Transcribed Image Text:In an experiment, Davisson and Germer used electrons incident normally on a nickel crystal surface cut parallel to the principal Bragg planes. They observed constructive interference at an angle of 50 degrees to the normal to the surface. Find the wavelength associated with the electron beam. The inter atomic spacing of Ni is 2.15 Å. The given answer in my homework assignment is approximately 1.65 Å.
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