玻璃板厚度对探究平面镜成像特点的影响

The Influence of Glass Plate Thickness on Exploring the Imaging Characteristics of Plane Mirror

探究平面镜成像特点实验,苏科版物理教材利用玻璃板来进行实验.玻璃板能反射也能透光,人眼在玻璃板前既能看到像,也能看到玻璃板后的物体,从而方便确定像的位置.教学实践中发现,学生们虽然知道使用薄一点的玻璃板进行实验比较好,但对具体原因的理解并不够深刻,本文尝试从光学原理的角度来解释玻璃板厚度对该实验的影响.

This article discusses the experimental research on the characteristics of image formation in plane mirror.The experiment is conducted using a glass plate in the Su Ke edition of the physics textbook.The glass plate can reflect and transmit light,allowing observers to see both the image formed by the mirror and the objects behind the glass plate.This makes it easier to determine the position of the image.However,during teaching practice,it was observed that although students understand that using a thinner glass plate is preferable for the experiment,their understanding of the specific reasons behind this choice is not deep enough.This article attempts to explain the influence of glass plate thickness on this experiment from the perspective of optical principles.