一束光射到平面镜上当反射光线与入射光线的夹角是30度时则反射角是1515度如果这束光垂直射到平面镜上这时入射角是00度. 题目和参考 Template




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tomski一束光射到平面镜上当反射光线与入射光线的夹角是30度时则反射角是1515度如果这束光垂直射到平面镜上这时入射角是00度. 题目和参考 coloring