It is found that photosynthesis starts in certain plants when exposed to the sunlight but it does not start if the plant is exposed only to infrared light. Explain.

It is given that photosynthesis starts in certain plants when exposed to the sunlight/visible light. This means that the photons of visible light have enough energy to initiate the process of photosynthesis. The wavelength of visible light is greater than the wavelength of infrared light. Therefore, infrared light will not have sufficient energy to initiate the process of photosynthesis. Hence photosynthesis does not start if the plant is exposed only to infrared light.


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