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[" An electron-positron pair (rrest mass...

[" An electron-positron pair (rrest mass of each particle "=0.51" MeV) is produced by a "y" -ray photon of energy "],[2.42" Mev.The K.E.impatted to each of the charged particles shall be- "],[[" (1) "0.3" MeV "," (2) "0.7" MeV "," (3) "1.4" MeV "," (4) "1.8" Mey "]]

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An electron-positron pair (rest mass of each particle = 0.51 MeV) is produced by a gamma- ray photon of energy 2.42MeV. The K.E. imparted to each of the charged particles shall be-

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