Leaves of most plants appear green because the chlorophyll present in

Leaves of most plants appear green because the chlorophyll present in it :

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absorbs red and blue light while reflecting green light.

absorbs green light only.

absorbs green light while reflecting red and blue light.

reflects red light and absorbs blue and green light.

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This question was previously asked in

UPSC NDA-1 – 2024

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Leaves of most plants appear green because the chlorophyll present in it absorbs red and blue light while reflecting green light.

Chlorophyll is the primary pigment in plants responsible for photosynthesis. It absorbs light most strongly in the blue and red regions of the visible spectrum. The green light from the spectrum is not absorbed efficiently; instead, it is reflected by the leaves. This reflected green light is what our eyes perceive, making the leaves appear green.

The absorption spectrum of chlorophyll shows peaks in the blue (~430 nm) and red (~662 nm) wavelengths and a trough in the green (~550 nm) wavelength, corresponding to reflection. The energy from the absorbed red and blue light is used for photosynthesis.

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