Home Biology Photosynthesis in Higher Plants NCERT Examplar Which light range is least effective in phot…
Biology Photosynthesis in Higher Plants NCERT Examplar Single Correct MCQ
Published on: August 12, 2026

Which light range is least effective in photosynthesis?

A
Blue
B
Green
C
Red
D
Violet

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The correct answer is:
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Violet light is least effective in photosynthesis.

In other lights namely red, the photosynthesis takes place but the rate is highest, whereas in green light, the photosynthesis is low because plants do not absorb this range of light reflect back thus, they appear green.

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