光的色散实验是学生开始认识光的重要实验,对于学生认识光现象,热爱自然,激起学生热爱科学、热爱物理的情感,对于学好物理具有极为重要的意义.但是,许多边少穷地区中学由于苦于没有三棱镜这一光学教具,教师以讲代做,由于学生没有实验过程和情景的体验,对突破“白光分解”“色光混合”和“透明物体和不透明物体颜色成因”造成很大困难,使得影 The experiment of dispersion of light is an important experiment that students begin to know light, which is of great significance for students to know light, love nature and arouse students’ love of science and their love of physics. However, many middle and poor schools Due to the lack of optical prism of the prism, the teacher said to do, because the students do not experiment with the experience of the scene, the breakthrough of “white decomposition ” “color mixing ” and “transparent objects and opaque objects color ”Caused great difficulties, making shadow