An electron-positron pair (positron is electron's antiparticle, it has the same mass as electron, but opposite charge) can be produced what two photon are collided. two photons of frequency w are collided head-on. what will be the electron's momentum? electron's rest mass is m(e).
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An electron-positron pair (positron is electron's antiparticle, it has the same mass as electron, bu...
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