Question

Explain young helmholtz theory of vision. Why this theory is called trichromatic theory??

Answer 1

The Young–Helmholtz theory (based on the work of Thomas Young and Hermann von Helmholtz in the 19th century), also known as the Trichromatic Theory, is a theory of trichromatic color vision – the manner in which the photoreceptor cells in the eyes of humans and other primates work to enable color vision.

Answer 2

As early as 1802, Young suggested that the eye contained different photoreceptor cells that were sensitive to different wavelengths of light in the visible spectrum. Helmholtz discovered that people with normal color vision need three wavelengths of light to create different colors through a series of experiments.