论文部分内容阅读
透镜成像是中考物理的重点也是难点,笔者就自己带领学生复习这部分内容时的一些心得与读者探讨。透镜成像是光的折射现象的应用,光在透镜的两个界面经过两次折射,使光的传播方向经过两次同方向(都是靠近主光轴或者都是远离主光轴)的偏折,从而起到对光的发散或者会聚作用。我们就以凸透镜为例:光在凸透镜的两个界面发生两次折射,根据光的折射定律,
Lens imaging is the focus of physics in the exam is difficult, I lead the students to review some of this content when some of the feelings and readers explore. Lens imaging is the application of light refraction phenomena where the light is refracted twice at the two interfaces of the lens and the light is propagated through two deflections in the same direction (both near the main optical axis or both away from the main optical axis) , Thus playing a divergent or convergent effect on light. We take the convex lens as an example: the light in the two interfaces of the convex lens refraction twice, according to the law of refraction of light,