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水是人们接触最广泛的光学材料之一.水对光的反射和折射已为人们所熟悉,但对光的全反射则了解较少.在人教社版《全日制普通高级中学教科书(必修加选修)物理第三册》第14面以例题方式,从理性角度论证了水对光的全反射现象,但在感性认识上学生仍然是空白,亦即很少有人在水下睁眼向上观看,又没有简便的实验方法可以让学生观察.为此,笔者设计了“观察水对光全反射”的简易实验,既激发了学生兴趣,
Water is one of the most widely-exposed optical materials, and water is known for its reflection and refraction of light, but less for total reflection of light. Plus elective) Physics Volume III, Section 14 demonstrated the total reflection of water on light from a rational point of view, but in perceptual knowledge students are still blank, that is, few people in the water eyes open up to watch , There is no simple experimental method for students to observe.To this end, the author designed “a simple experiment to observe the total reflection of water ”, which not only aroused the interest of students,