Which range of wavelength (in nm) is called photo- synthetically active radiation (PAR)?

Question

Which range of wavelength (in nm) is called photo- synthetically active radiation (PAR)? (A) 100 - 390 (B) 390 - 430 (C) 400 - 700 (D) 760 - 10,000

Tardigrade Admin · Accepted Answer

Sunlight or solar radiations reaching the earth have wavelength between 300 nm (in the ultraviolet range) to 2600 nm (in the infra-red range). Part of the spectrum used in photosynthesis has a wavelength between 400-700 nm, it is called as photosynthetically active radiation (PAR).

Q. Which range of wavelength (in nm) is called photo- synthetically active radiation (PAR)?

100 - 390

390 - 430

400 - 700

760 - 10,000

Sunlight or solar radiations reaching the earth have wavelength between 300 nm (in the ultraviolet range) to 2600 nm (in the infra-red range). Part of the spectrum used in photosynthesis has a wavelength between 400-700 nm, it is called as photosynthetically active radiation (PAR).