学习了透镜对光的作用后,部分同学对这部分内容理解不透,甚至理解错,导致做错题.现举一例说明,希望同学们能从中得到启示.例图1、图2画出了光通过透镜前后的方向,请在图中填上适当类型的透镜.错解:如图3、图4.解析:所谓凸透镜对光有会聚作用,是指被凸透镜折射后的 After learning about the effect of the lens on light, some students couldn’t understand this part of the content, or even misunderstood it, leading to the wrong question. We now give an example and hope that the students can get inspiration from it. Example 1 and Figure 2 show The direction of light through the lens before and after, please fill in the appropriate type of lens in the figure. Misunderstood: Figure 3, Figure 4. Analysis: The so-called convex lens on the convergence of light, refers to the refracted by the convex lens