Question
Question: Emmerson defined ‘red drop' as a decline in photosynthesis also termed Emmerson's effect. It appears...
Emmerson defined ‘red drop' as a decline in photosynthesis also termed Emmerson's effect. It appears at
A
460 nm wavelength
B
630 nm wavelength
C
680 nm wavelength
D
680 nm wavelength
Answer
680 nm wavelength