人在岸上观看水中的物体,看到的是水中物体的像。观测者站在不同位置来看水中的物体,看到水中物体的像是变化的。通过计算,学生就能知道物体在水中像的位置确实与观测者眼睛的位置有关。眼睛要看清物体,物体必须要在视网膜上成清晰的像。现在假设水中物体反射的两条光线在水面 People watch objects in the water on the shore and see images of objects in the water. Observers stand in different positions to see the objects in the water and see the changes in the objects in the water. Through calculations, students can know that the position of the object in the water is indeed related to the position of the observer’s eyes. The eye must see the object. The object must be clear on the retina. Now suppose that two rays of light reflected from an underwater object are on the surface of the water