Study the graph of light intensity on rate of photosynthesis and choose incorrect option.

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Region B is transition point for limiting factor

In region C rate of photosynthesis is not increasing with increase in light

In region A light is not limiting factor

D is point beyond which light is not limiting factor

answer is A.

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Detailed Solution

There is a linear relationship between incident light and CO₂ fixation rates at low light intensities. At higher light intensities, gradually the rate does not show further increase as other factors become limiting. Therefore, in region A light is a limiting factor.

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