Which of the following types of light are strongly absorbed by plants?
✓ Correct answer: b) Blue and red
ExplanationPlant chlorophyll absorbs light most efficiently in the blue (around 430–450 nm) and red (around 640–680 nm) regions of the spectrum.These wavelengths drive the light- dependent reactions of photosynthesis, converting light energy into chemical energy.This energy is then used to convert carbon dioxide and water into glucose and oxygen.The absorption of blue light helps in the energy conversion, while red light plays a key role in the process of creating sugars.The green light is mostly reflected bach which is why plants appear green to us.Science and Technology 615 384
Practice more Science PYQs
Attempt a free 10-question quiz or browse the full Science & Technology previous-year-question bank with instant answers and explanations.
🔬 Science PYQs →