A photon having 40 keV scatters from a free electron at rest.What is the maximum energy that the electron can obtain？（）
A photon having 40 keV scatters from a free electron at rest.What is the maximum energy that the electron can obtain？（）
A.1.73 eV
B.5.41 eV
C.7.95 eV
D.4.32 eV
正确答案：5.41 eV
Tag：原子物理
时间：2024-01-03 15:10:53