Does The Sunshine Have Colors?
The photography triangular prism glass will show you a colorful world from a special angle. It is actually a lot more interesting optically. Do it as following steps:
1. Let the sunlight enter the prism from one side, the incident angle is about 45°.
2. Take a light screen, preferably black, and stand it upright on the table (easy to observe).
3. Adjust the angle of light incident from one side of the prism and the height of the screen until the rainbow appears on the screen.
4. Move the light screen back and forth to observe the changes of the rainbow, and summarize the relationship between the width of the color fringe and the angle of incidence and the distance of the light screen.