Back to your test review
Start free test
The colour of light least used in photosynthesis is
Your answer:
Correct answer: (d)
Advertisement
Explanation
Why (d) is correct
Green light is least absorbed by chlorophyll; most of it is reflected, which is why leaves look green. So green light is used least in photosynthesis.
Why the other options are wrong
- (a) · your answer Red light is strongly absorbed and used.
- (b) · your answer Violet light is absorbed fairly well by chlorophylls and carotenoids.
- (c) · your answer Blue light is absorbed most strongly.
NCERT point: Action spectrum: high in blue and red, low in green.
Thank you! We will check this question.
Practise Photosynthesis in Higher Plants
Take a free 15-question NEET Biology test on this chapter. Timed, scored instantly.