一、设计光学实验1.放在灯光下,能看见瓶子及影子,这可以说明光的折射和光的直线传播。2.在装有半瓶水的瓶子内插入铅笔,可以看见铅笔在水面折断了,这是光的折射。3.装有水的瓶子是一个凸透镜。可以用它来研究凸透镜的特性:焦点、焦距、聚光作用、放大作用、取火等。还可用它来探究凸透镜的焦距与瓶子直径的关系、凸透 First, the design of optical experiments 1. Under the lights, can see the bottle and shadow, which can explain the refraction of light and light linear propagation. 2. Insert a pencil in a bottle containing half a bottle of water, and you can see that the pencil breaks on the surface of the water. This is the refraction of light. 3. The bottle filled with water is a convex lens. It can be used to study the characteristics of the convex lens: focus, focal length, condenser effect, amplification, and fire. It can also be used to explore the relationship between the focal length of the convex lens and the diameter of the bottle.