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NEET 2011
Exam
NEET
Year
2011
Subject
Botany
Chapter
Ecosystem

NEET 2011 · Botany · Ecosystem

Of the total incident solar radiation the proportion of PAR is

Of the total incident solar radiation the proportion of PAR is

Options

  1. Aabout 60%60 \%
  2. Bless than 50%50 \%
  3. Cmore than 80%80 \%
  4. Dabout 70%70 \%

Correct answer

B. less than 50%50 \%

Step-by-step solution

PAR (Photosynthetically active radiation) designates the spectral range of solar radiation from 400 to 700 nm700 \mathrm{~nm} that photosynthetic organisms are able to use in the process of photosynthesis. Of the total incident solar radiation the proportion of PAR is less than 50%50 \%.
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