Percentage of photosynthetically active radiation (PAR) in the incident solar radiation is a. 1- 5% b. 2- 10% c. less than 50% d. approx. 100%
Option B.Around 50% of the total radiation from sunlight falls under photosynthetically active radiation and supports the process of photosynthesis. It constitutes the light of 400-700 nm wavelength which is absorbed by chlorophyll pigment. Out of which only 2 - 10% are captured by plants.
