Answered: When monochromatic light of an unknown…

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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Question

When monochromatic light of an unknown wavelength falls on a sample of zinc, a minimum potential of 2.21 V is required to stop all of the ejected photoelectrons. (The work function for zinc is 4.31 eV. Determine the maximum speed (m/s) and wavelength (nm).

Expert Solution

Step 1

Given:

work function for zinc, Φ = 4.31 eV

Stopping potential, V = 2.21 V

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