Physics Unit32: Elementary Particles (id: a07eccc18)

本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 国际高中通用物理

[单选题]
When a positronium at .jy8 t. qgmdd0a*+dsxom (electron + positron) decays, it emits two phodzpc,o 3zz c872x(lo0s.rcu y tons. What a crs.,lpyz8zo 0u3(o cz27xdc re 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

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