1如图所示有两束光线入射到凸透镜.请画出�凸透镜左侧的焦点f�第1束光出射凸透镜后的径迹�第2束光入射凸透镜前的径迹2“森林 Template




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tomski1如图所示有两束光线入射到凸透镜.请画出�凸透镜左侧的焦点f�第1束光出射凸透镜后的径迹�第2束光入射凸透镜前的径迹2“森林 coloring