Photosynthesis Question 67

67. Photosynthetically active radiation is represented by the range of wavelength of

[1996, 2004, 05]

(a) $340-450 nm$

(b) $400-700 nm$

(c) $500-600 nm$

(d) $400-950 nm$

Show Answer

Answer : b

Hints & Solution

(b) Photosynthesis takes place only in the visible part ( $400-700 nm$ wavelength) of electromagnetic radiations. Hence this component comprises the photosynthetically active radiation.