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平面镜的作用有两个:一个是成像,一个是改变光路。现分别举例分析。一、成像例1平面镜中的“花”的大小取决于()A.花本身的大小B.平面镜的大小C.花到平面镜的距离D.平面镜放置的高低解析平面镜成像的特点是:(1)虚像,(2)像与物等大,(3)像与物到镜子距离相等,(4)像与物对应点的连线与镜面垂直。所以像的大小只与花本身的大小有关,与其他因素没有关系。答案C例2一平面镜与水平桌面成45°角固定在
The role of plane mirror has two: one is imaging, one is to change the light path. Now an example analysis. First, the imaging example 1 flat mirror in the “flower” size depends on () A. The size of the flower itself B. The size of the plane mirror C. The distance from the flower to the plane mirror D. Plane mirror placed high and low analytical plane mirror imaging features are: (1) the virtual image, (2) like objects and other large, (3) and the distance from the object to the mirror is equal, (4) like the object corresponding point of the connection and the mirror perpendicular. So the size of the image is only related to the size of the flower itself, and has nothing to do with other factors. Answer C Example 2 A flat mirror is fixed at a 45 ° angle to the horizontal table top