1. When light waves are incident on a smooth, flat surface, they reflect away from the surface at the same angle as they arrive. Regardless of whether light is acting as particles or waves, the result of reflection is the same. ... The reflected light produces a mirror image.
2. We see about six colors in a rainbow—red, orange, yellow, green, blue, and violet; sometimes indigo is listed, too. Those colors are associated with different wavelengths of light, as shown in Figure 2. When our eye receives pure-wavelength light, we tend to see only one of the six colors, depending on wavelength.
3. Each beam of light has its own particular wavelength and is slowed differently by the glass. Violet light has a shorter wavelength; hence, it is slowed more than the longer wavelengths of red light. Consequently, violet light is bent the most while the red light is bent the least.
