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Back to 30.3 Bohr’s Theory of the Hydrogen Atom

30.3 Exercise 3

Avg difficulty 2.5

The ground state of a certain type of atom has energy –E0. What is the wavelength of a photon with enough energy to ionize an atom in the ground state and give the ejected electron a kinetic energy of 2E0?

  1. hc 3 E 0 \frac{h c}{3 E_{0}}
  2. hc 2 E 0 \frac{h c}{2 E_{0}}
  3. hc E 0 \frac{h c}{E_{0}}
  4. 2hc E 0 \frac{2 h c}{E_{0}}

OpenStax College Physics 2e, 30.3 Bohr’s Theory of the Hydrogen Atom, exercise 3

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.