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Lesson: The Photoelectric Effect

In this lesson, we will learn how to relate electromagnetic radiation wavelength to the kinetic energy of electrons ejected by it from various materials.

Question Video: Velocity of Photoelectrons

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Worksheet: The Photoelectric Effect • 20 Questions

Q1:

Silver has a work function of 4.73 eV. What is the longest wavelength of radiation that can eject a photoelectron from silver?

Q2:

The work function of a photoelectrode is 4.73 eV. Find the maximum velocity of photoelectrons ejected from the photoelectrode by 80.0-nm radiation.

A m/s
B m/s
C m/s
D m/s
E m/s

Q3:

Ultraviolet radiation of wavelength m illuminates a gold-plated electrode. What is the maximum kinetic energy of photoelectrons ejected from the electrode?

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