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Question
Which of the following light will be most favourable for photosynthesis?
Which of the following light will be most favourable for photosynthesis?
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Solution
The correct option is B Blue and red
Photosynthesis is the ability of plants to absorb the energy of light and convert it into energy for the plant. Plants use only certain colors from light for this process. The chlorophyll absorbs blue, red and violet light rays. The light that is absorbed the best is blue, so this shows the highest rate of photosynthesis, after which comes red light. Red is longer wavelength, lower energy light, while the blue light is higher energy. Green light cannot be absorbed by the plant, and thus cannot be used for photosynthesis.
So, the correct option is 'Blue and red'.
Photosynthesis is the ability of plants to absorb the energy of light and convert it into energy for the plant. Plants use only certain colors from light for this process. The chlorophyll absorbs blue, red and violet light rays. The light that is absorbed the best is blue, so this shows the highest rate of photosynthesis, after which comes red light. Red is longer wavelength, lower energy light, while the blue light is higher energy. Green light cannot be absorbed by the plant, and thus cannot be used for photosynthesis.
So, the correct option is 'Blue and red'.
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