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Back to 6.1 Electromagnetic Energy

6.1 Exercise 15

Avg difficulty 2.5

What is the threshold frequency for sodium metal if a photon with frequency 6.66 ×\times 1014 s−1 ejects an electron with 7.74 ×\times 10−20 J kinetic energy? Will the photoelectric effect be observed if sodium is exposed to orange light?

OpenStax Chemistry 2e, 6.1 Electromagnetic Energy, exercise 15

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Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.