NEET2007BotanyPhotosynthesis in Higher PlantsActual
What is PAR range?
Options
- A(200 ~nm -800 ~nm )
- B(400 ~nm -700 ~nm )
- C(350 ~nm -550 ~nm )
- D(600 ~nm -100 ~nm )
Correct answer
B. (400 ~nm -700 ~nm )
Step-by-step solution
Light is the visible part of electromagnetic radiations. Sunlight or solar radiations reaching the earth have wavelength between (300 ~nm ) to (2600 ~nm ). Part of the spectrum used in photosynthesis has a wavelength between (400-700 ~nm ). It is called photosynthetically active radiation (PAR).