Photosynthetically Active Radiation (PAR) is the portion of the light spectrum accessible for photosynthesis in green plants. What is the range of spectrum of light in terms of PAR?

Correct option is B

Photosynthetically Active Radiation (PAR) refers to the light spectrum range from 400 to 700 nm, which is utilized by plants during photosynthesis. This range corresponds to visible light essential for energy absorption.