- Sue Popelka
- Geometry, Prism, Reflection, Trigonometry
Move the red dot on the incident ray to show how light refracts when entering (from air) a prism with index of refraction, n. The light is then reflected on two inside surfaces of the prism and refracted again before exiting the prism. Note that angle v must be greater than the specified amount for the light to be totally reflected in the prism. You can also change the index of refraction with the slider and the angle of the corner of the prism with the yellow dot.