Physiological process affected by light is
movement of stomata
chlorophyll synthesis
formation of anthocyanin
All of these
Light affects the growth and development of the plant. Several factors of light like light intensity, duration of light and quality of light influences several physiological processes like the movement of stomata, chlorophyll synthesis, the temperature of aerial organs, formation of anthocyanin, absorption of minerals streaming of protoplasm and rate of transpiration.
Hence, the correct answer is all of these.