A positron and an electron each of mass 91 x 10-31kg are in, Ask an Expert

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A positron and an electron each of mass 9.1 x 10^-31kg are in the same general vicinity and have very small initialspeeds. They then annihilate each other producting two photons

a) What is the approximate energy of each emerging photon?
b) What is the angle between the paths of the emerging photons?

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Reference No.:- M91101042

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