关于平面镜成像的原因,在教学时大都围绕“光的反射”来解释:“人眼是根据光的直线传播来判断物体的位置,如图1所示,逆着蜡烛发出的光线,人眼就能确定蜡烛的位置.如图2所示,点燃的蜡烛上S点发出的光经过平面镜反射后进入人眼,与图1相比,两种情况引起的视觉感受相同,所以人就会感到S1处有一个发光点,这个发光点就是S点的虚像.同理,蜡烛上的其他点也都能在平面镜内产生对应的虚 The reason for the plane mirror imaging, teaching mostly around ”light reflection “ to explain: ”The human eye is based on the light of a straight line to determine the position of the object, as shown in Figure 1, against the light emitted by the candle, The human eye can determine the position of the candle, as shown in Figure 2, the light emitted by the point S on the lit candle enters the human eye after being reflected by the plane mirror. Compared with Figure 1, the two situations cause the same visual feeling, Will feel there is a light-emitting point S1, the light-emitting point is the virtual image of S. Similarly, the other points on the candle can also produce a corresponding virtual in the plane mirror