When a metal surface, in a photoelectric effect apparatus, is illuminated with monochromatic light at a wavelength 1 = 304.5 nm the stopping potential is found to be Von =1.87 V. 5. stop a. What is the work function, W , of the metal surface? b. If this photocathode is illuminated by light with a wavelength 1 = 475.0 nm , what is the maximum kinetic energy of the ejected photo-electrons, Kmax ? What is the critical wavelength, 1 , for this metal surface? Light with any wavelength longer C.

When a metal surface, in a photoelectric effect apparatus, is illuminated with monochromatic light at a wavelength 1 = 304.5 nm the stopping potential is found to be Von =1.87 V. 5. stop a. What is the work function, W , of the metal surface? b. If this photocathode is illuminated by light with a wavelength 1 = 475.0 nm , what is the maximum kinetic energy of the ejected photo-electrons, Kmax ? What is the critical wavelength, 1 , for this metal surface? Light with any wavelength longer C.

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 67A

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