Q33 / 200 · NEET 2005 · Botany

Photosynthetic active radiation (PAR) has the following range of wavelengths:

  • A
    $340-450 \mathrm{~nm}$
  • Correct answer
    B
    400-700 nm
  • C
    $500-600 \mathrm{~nm}$
  • D
    $450-950 \mathrm{~nm}$.

Solution

Photosynthetically Active Radiation (PAR) is the amount of light available for photosynthesis, which is light in the 400 to 700 nanometer wavelength range.

Hence, the correct answer is option: 'B'.

More Photosynthesis in Higher Plants Questions