Total reflection Demonstrator

The utility model discloses a total reflection demonstration instrument. A light source, a transparent water container, a reservoir and a display screen are successively arranged from front to back; the transparent water container, the reservoir and the display screen are fixed on a pedestal; the transparent water container is square column shaped; an upper end of the transparent water container is provided with a matched cover; one side, facing to the reservoir, of the transparent water container is provided with a circular hole, and water in the transparent water container enters into the reservoir through the circular hole in an arc line manner; and 1/3 to 4/5 of the transparent water container is equipped with water. The purpose of the utility model is to provide a total reflection demonstration device which is simple in structure, easy to operate and vivid in demonstration; students do experiments by themselves and observe demonstration experiments of teachers, the students understand total reflection phenomenon of light and summarize conditions of total reflection, and observing and summarizing abilities of the students are trained; and curiosity of the students is caused by observing the demonstration experiments, and consciousness of the students to design and improve the experiments by themselves is trained.