摘要
本文总结了凹面镜、凸面镜、凸透镜、凹透镜的成像规律,指出了它们之间的联系和区别。
In this paper, We have summarized the laws of formation of image of concave mirror , convex mirror , convex lens , concave lens, and have pointed out the connection and difference between them.
关键词
焦距
光焦度
实物
虚物
Focus
Only burnt degree
Material object
Empty thing
