The correct answer is Red Light.
Concept:
Photosynthesis:
- The leaves have a green pigment called chlorophyll.
- It helps leaves to capture the energy of the sunlight.
- This energy is used to synthesise (prepare) food from carbon dioxide and water. Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis.
In the presence of sunlight Carbon dioxide + water → Carbohydrate + oxygen.
- Some plants, green algae, and cyanobacteria can perform photosynthesis.
- The process of photosynthesis is commonly written as
6CO2 + 6H2O + Sun-Light → C6H12O6 + 6O2
Explanation:
- Photosynthesis is maximum in the Red colour of Light and Least in the Green colour of Light.
- In the absorption spectrum, the red & blue lights are absorbed while the majority of green light gets reflected
- Photosynthesis range from 400 to 700 nm, It absorbs the Violet, Blue and Red colour of Light.

