The graph provided shows the maximum kinetic energy of ejected electrons plottedagainst the frequency of the light shone on four different metals, A, B, C and D. What isthe unknown metal if light of wavelength 1.87 × 107 m shines on it and the maximumkinetic energy of the ejected electrons is 2.5 eV?(A)(В)metal A(D)7..metal Bmetal Cmetal D0.2 0.4 0.6 0.81.2 1.4 1.6 1.82.2 2.415Frequency (10° Hz)(BCDMaximum KE (eV) In a photoelectric effect experiment, light is shone on a metal surface. The graphbelow illustrates the maximum kinetic energy of ejected electrons versusfrequency of the incident light of the photons.12.Ekmax0 2 4 6 8 10Frequency (×101ª Hz)(i)Use the graph to determine a frequency at which the photoelectric effectwill not occur, and explain why it will not occur.(ii)Determine the work function of the metal.

Answered: Image /qna-images/answer/369630c8-681d-4f3e-aee2-22fbe056ab7a.jpg

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)

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 4STP

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