The graph provided shows the maximum kinetic energy of ejected electrons plotted against the frequency of the light shone on four different metals, A, B, C and D. What is the unknown metal if light of wavelength 1.87 × 107 m shines on it and the maximum kinetic energy of the ejected electrons is 2.5 eV? (A) (В) metal A metal B metal C metal D 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 2 2.2 2.4 15 Frequency (10° Hz) (BCD Maximum KE (eV)
The graph provided shows the maximum kinetic energy of ejected electrons plotted against the frequency of the light shone on four different metals, A, B, C and D. What is the unknown metal if light of wavelength 1.87 × 107 m shines on it and the maximum kinetic energy of the ejected electrons is 2.5 eV? (A) (В) metal A metal B metal C metal D 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 2 2.2 2.4 15 Frequency (10° Hz) (BCD Maximum KE (eV)
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter27: Quantum Physics
Section: Chapter Questions
Problem 19P
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