4. An electron and a positron, each of mass 9.11 x 10-³¹ kilogram, are in the same general vicinity and have very small initial speeds. They then annihilate each other, producing two photons. What is the approximate energy of each emerging photon? a. 0.51 MeV b. 2.0 MeV c. 4.0 MeV d. 6.6 MeV e. It cannot be determined unless the frequency of the photon is known

4. An electron and a positron, each of mass 9.11 x 10-³¹ kilogram, are in the same general vicinity and have very small initial speeds. They then annihilate each other, producing two photons. What is the approximate energy of each emerging photon? a. 0.51 MeV b. 2.0 MeV c. 4.0 MeV d. 6.6 MeV e. It cannot be determined unless the frequency of the photon is known

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter29: Introduction To Quantum Physics

Section: Chapter Questions

Problem 15PE: Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 420-nm photons. Once...

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