Question : Which light is least effective in photosynthesis ?
Option 1: Blue light
Option 2: Green light
Option 3: Red light
Option 4: Sunlight
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
Correct Answer: Green light
Solution : The correct option is Green light
Green light is the least efficient in photosynthesis. Plants generally utilise red and blue light for photosynthesis because chlorophyll, the pigment responsible for collecting light energy, absorbs these wavelengths more efficiently. Since chlorophyll reflects and transmits green light, it is less effective at stimulating photosynthesis. Because plants reflect green light while absorbing other colours for energy, they look green to human eyes. While green light does help to photosynthesis to some level, its overall efficacy is lower than that of red and blue light.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates Brochure
Your Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.
