✅ (d) 680 nm: • Chlorophyll 'a' absorbs red light most efficiently, especially around 680 nm. • This corresponds to Photosystem II (P680) in the light reaction of photosynthesis. • Also absorbs in the blue region (430–450 nm).
❌ (a), (b), (c): • 480 nm is more for chlorophyll b or accessory pigments; 580–600 nm is less efficiently absorbed.
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45 Mins English English100 Questions100 Marks120 Mins English English100 Questions100 Marks120 Mins EnglishThe WHO standard of drinking water for nitrate is
Emissivity of a black body is
The formula for Ethane is
The consumption of water containing high levels of nitrate–N can lead to
The common table sugar is
Deficiency of Vitamin A causes
Environmental Protection Act was enacted in the year
The spectral bands used in Greenness Vegetation Index are (A) Red (B) Blue (C) Green (D) NIR (E) MIR
Choose the correct answer from the options given below:
The building units of oligosaccharides and polysaccharides are
Suggested Test Series
Suggested Test Series
The WHO standard of drinking water for nitrate is
Emissivity of a black body is
The formula for Ethane is
The consumption of water containing high levels of nitrate–N can lead to
The common table sugar is
Deficiency of Vitamin A causes
Environmental Protection Act was enacted in the year
The spectral bands used in Greenness Vegetation Index are (A) Red (B) Blue (C) Green (D) NIR (E) MIR
Choose the correct answer from the options given below:
The building units of oligosaccharides and polysaccharides are
