PS I has chlorophyll a molecule that absorbs maximum light of _ nm.

Explanation

Photosystems are the protein complexes involved in photosynthesis. Each photosystem is characterized by the wavelength of light to which its reaction centre is most reactive. Photosystem I, reaction centre pigment chlorophyll-a has an absorption peak at 700nm. Thus photosystem I is also known as P 700 So, the correct answer is '700 nm' A.This is factually incorrect value. B.This is not the maximum wavelength absorption of photosystem I. C.This is the peak absorption of photosystem II