全日制中学物理试验本文科用教材第四册第７７面第２题，和理科用教材第五册第６９面第２题都有这样一道习题：把一个平凸透镜的弯曲面压在另一个玻璃平面上，让光从上方射入，如图１所示，这时可以看到亮暗相间的同心圆．这个现象是牛顿首先发现的，这些同心圆叫做牛顿环．解 The full-time middle school physics experiment is based on the second question of the 77th face of the fourth volume of the textbook and the second face of the 69th face of the fifth volume of the science textbook. There is an exercise: press the curved surface of one plano-convex lens on the other glass. In the plane, let light enter from above, as shown in Figure 1. At this time, you can see the bright and dark concentric circles. This phenomenon was first discovered by Newton. These concentric circles are called Newton rings. solution