Optics and Vision Quiz

Accommodation in the human eye is the ability to adjust the focal length of the lens to focus on objects at different distances. This is achieved by the ciliary muscles changing the shape of the lens to increase or decrease its curvature, allowing for clear vision of objects at varying distances.

Dispersion of light occurs when light is separated into its component colors due to variation in the refractive index of different colors. This can be observed when light passes through a prism, causing the light to bend at different angles and creating a spectrum of colors. The shorter wavelengths (violet and blue) are bent more than the longer wavelengths (orange and red), resulting in the formation of a spectrum.

The human eye perceives color through the stimulation of three types of cones: red, green, and blue. These cones are sensitive to different wavelengths of light and work together to create the perception of various colors. The brain processes the signals from these cones to interpret the colors we see.