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Question: 

A gamma-ray photon produces an electron and a positron, each with a kinetic energy of 285 keV. Determine the energy and wavelength of the photon.

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

$1.592 \times 10^6 \textrm{ eV, } 7.79 \times 10^{-13} \textrm{ m}$

Giancoli 7th Edition, Chapter 27, Problem 37

(1:39)

Chapter 27, Problem 37 is solved.

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