The half- life of a positron is very short. it reacts with an electron, and the masses

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The half- life of a positron is very short. it reacts with an electron, and the masses of both are converted to two gamma-ray photons:

(0e+1)+ (0e-1)---> 2?

(the 0 in front of e is the mass # and behind it is the atomic #)

(? stands for the photons)

This reaction is called an annihilation reaction. the mass of an electrion or positron is 9.109 * 10^-31 kg

a) Calculate the energy produced by the reaction between one electron and one positron.( in Joules)

change in E= ______J

b)Assuming that the two ?-ray photons have the same frequency,calculate this frequency.

? photon=_____Hz

Related Book For answer-question

University Physics with Modern Physics

ISBN: 978-0133977981

14th edition

Authors: Hugh D. Young, Roger A. Freedman

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Posted Date: Dec 13, 2022 11:00 AM

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The half- life of a positron is very short. it reacts with an electron, and the masses

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A E energy m mass of particle c speed of light that is 310 ms The ... View the full answer

University Physics with Modern Physics

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