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Nuclear And Radioactivity Test - 2
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Nuclear And Radioactivity Test - 2
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    A gamma ray photon creates an electron-positron pair. If the rest mass energy of an electron is 0.5 MeV and the total kinetic energy of the electron-positron pair is 0.78 MeV, then the energy of the gamma ray photon must be

    Solutions

    Energy of γ-rays photon = 0.5 + 0.5 +0.78 = 1.78 MeV

     

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