2. a) Davisson and Germer, and G.P. Thomson demonstrated the wave nature of electrons in 1927 by showing electron diffraction occurred when crystals were bombarded with electrons. The electrons used in diffraction experiments must interact with the crystal i.e. their wavelength must be approximately the same as the inter-atomic spacing. Assuming the motion is non-relativistic and the electron starts from rest, find the potential difference through which an electron must be accelerated to have a wavelength of 10-10 m. b) What is the momentum of the electron at this wavelength?
2. a) Davisson and Germer, and G.P. Thomson demonstrated the wave nature of electrons in 1927 by showing electron diffraction occurred when crystals were bombarded with electrons. The electrons used in diffraction experiments must interact with the crystal i.e. their wavelength must be approximately the same as the inter-atomic spacing. Assuming the motion is non-relativistic and the electron starts from rest, find the potential difference through which an electron must be accelerated to have a wavelength of 10-10 m. b) What is the momentum of the electron at this wavelength?
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter3: The Quantum Theroy Of Light
Section: Chapter Questions
Problem 21P
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