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?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways:

Question

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?

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