Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
27
Early Quantum Theory and Models of the Atom
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27-1: Discovery of the Electron
27-2: Blackbodies; Planck's Quantum Hypothesis
27-3 and 27-4: Photons and the Photoelectric Effect
27-5: Compton Effect
27-6: Pair Production
27-8: Wave Nature of Matter
27-9: Electron Microscope
27-11 and 27-12: Spectra and the Bohr Model

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 34
Q

What is the longest wavelength photon that could produce a proton–antiproton pair? (Each has a mass of 1.67×1027 kg1.67 \times 10^{-27} \textrm{ kg}.)

A
6.62×1016 m6.62 \times 10^{-16} \textrm{ m}
Giancoli 7th Edition, Chapter 27, Problem 34 solution video poster
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