The green light is considered to be the least efficient wavelength for photosynthesis. During photosynthesis, if the plants are exposed to green wavelength, the rate at which the photosynthesis takes place will be the least. This is due to the presence of a green pigment known as chlorophyll. The green light is transmitted and reflected instead of absorbed by the chlorophyll. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).