Physics Unit32: Elementary Particles (id: 26da1548a)

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本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 Generic Physics

[单选题]
When a positronium atom (elwz5 v5olc bv-rk6od 83q3n 9ze3 7qaxfectron + positron) decays, it en52j rc(6 -fjligx- zvmits two photons. What 5i-vj j-grlz(6fxc 2nare the energies of the photons?

A. 0.511 MeV and 1.022 MeV
B. 0.225 MeV and 0.285 MeV
C. 0.256 MeV and 0.256 MeV
D. 0.511 MeV and 0.511 MeV


参考答案:  D


本题详细解析: 暂无