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平面镜成像实验是初中物理的经典实验,2012年教育部颁布的初中物理课程标准列入了20个学生必做实验。南京市物理教研员许志在一次市级公开课“平面镜成像”评课时介绍说:江苏省教研室对部分初中物理教师进行实验操作技能考核,在操作结束进行评分时,凡是平面镜成像实验数据中物距和像距数据相等的都认定为该实验操作不合格。这是为什么呢?他进一步解释说,因为该实验器材中平面镜是由平面玻璃板制成的,玻璃板本身存在一定的厚度,而反射面在玻璃板的表面,无论怎么做,实
The plane mirror imaging experiment is a junior high school physics experiment. In 2012, 20 junior high school physics curriculum standards promulgated by the Ministry of Education included in the experiment. Xu Zhi, Nanjing physical teaching and research staff in a municipal open class “flat mirror imaging ” class review said: Jiangsu Province, Department of Physics teachers on some experimental skills test operation, at the end of the operation for grading, all the flat mirror imaging experiment The data in the object distance and image distance data are equal for the experimental operation failed. Why is this? He further explained that because the experimental equipment flat mirror is made of flat glass, the glass itself has a certain thickness, and the reflective surface is in the glass surface, no matter how to do, the real