Question

Only 50% of the incident light or solar energy is available for photosynthesis and it is known as radiation.

• A. $\text{photosynthetically active}$
• B. $\mathrm{visible}$
• C. $\mathrm{electromagnetic}$
• D. $\mathrm{radioctive}$

Answer 1

The correct option is A $\text{photosynthetically active}$

Solar energy is the driving force of the ecosystem. Only 50% of the incident light or solar energy is available for photosynthesis. This is called photosynthetically active radiation (PAR) which can be used for photosynthesis and its wavelength range is 400 nm-700 nm. Once this energy is lost, it can't be recycled.