Q. What is the percentage of Photosynthetically Active Radiation (PAR), if incident solar radiation is considered 100%?
A) 100%
B) 1-6%
C) 2-20%
D) 50%
Explanation
Out of the total incident solar radiation, only 50% of it is Photosynthetically Active Radiation (PAR). Plants capture only 2-10% of the PAR and this small amount of energy sustains the entire living world
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.