29.5 The Particle-Wave Duality

Electromagnetic radiation behaving as wave or as particle depending on the experiment performed, and why neither description alone suffices.

College Physics 2e, 29.5 The Particle-Wave Duality

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1 exercise

29.5 Exercise 1

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?

$\lambda = \frac{h c}{3 E_{0}}$
$\lambda = \frac{h c}{2 E_{0}}$
$\lambda = \frac{h c}{E_{0}}$
$\lambda = \frac{2 h c}{E_{0}}$

2.5