3. In a TV tube an electric potential difference accelerates electrons from a rest position towards a screen. Just before reaching the screen, the electrons have a wavelength of 1.2 × 10-1'm. Determine the kinetic energy of the electrons just before they reach the screen. Your final answer should have units of eV.
3. In a TV tube an electric potential difference accelerates electrons from a rest position towards a screen. Just before reaching the screen, the electrons have a wavelength of 1.2 × 10-1'm. Determine the kinetic energy of the electrons just before they reach the screen. Your final answer should have units of eV.
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter27: Quantum Theory
Section: Chapter Questions
Problem 55A
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