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Back to 29.5 The Particle-Wave Duality

29.5 Exercise 1

Avg difficulty 2.5

The ground state of a certain type of atom has energy of –E0. What is the wavelength of a photon with enough energy to ionize the atom when it is in the ground state, so that the ejected electron has kinetic energy equal to 2E0?

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

OpenStax College Physics 2e, 29.5 The Particle-Wave Duality, exercise 1

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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.