1. When light of wavelength 3.5 x 10² nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find a. the work function of potassium b. the cutoff wavelength c. the frequency corresponding to the cutoff wavelength

1. When light of wavelength 3.5 x 10² nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find a. the work function of potassium b. the cutoff wavelength c. the frequency corresponding to the cutoff wavelength

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter10: Atomic Physics

Section: Chapter Questions

Problem 11P

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Please answer #1

1. When light of wavelength 3.5 x 10² nm falls on a potassium surface, electrons having a
maximum kinetic energy of 1.31 eV are emitted. Find
a. the work function of potassium
b. the cutoff wavelength
c. the frequency corresponding to the cutoff wavelength

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