Question

In plants,maximum absorption of light occurs in the region of (1)1000-1200 nm (2)1500-2000 nm (3) 400-700 nm (4)700-900 nm

Answer 1

Explanation:

Light between 400-700 nm wavelength constitute the photosynthetically active radiation (PAR). Maximum absorption of light by chlorophyll a occurs in red and blue regions of the absorption spectrum. So that, the rate of photosynthesis is maximum in red and blue light of the visible spectrum