Photosynthetically active radiation (PAR) represents the following range of wavelength:
Photosynthetically active radiation (PAR) represents the following range of wavelength:
$500-600 \mathrm{~nm}$
$450-950 \mathrm{~nm}$
$340-450$ tun
$400-700 \mathrm{~nm}$.
Solution
Photosynthetically Active Radiation (PAR) is the amount of light available for photosynthesis, which is light in the 400 to $700 \mathrm{~nm}$ wavelength range.