Observations of neutrinos emitted by the supernova SN1987a (Figure b) place an upper limit of 20 eV
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Observations of neutrinos emitted by the supernova SN1987a (Figure b) place an upper limit of 20 eV on the rest energy of the electron neutrino. If the rest energy of the electron neutrino were, in fact, 20 MeV, what would be the speed difference between light and a 1.5 MeV electron neutrino?
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From Eq 3748 the Lorentz factor would be 15x10 eV 20 eV Y Solvin...View the full answer
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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