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InterviewSolution
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Question : Nature of light its role in photosynthesis. |
| Answer» Solution :(1)LIGHT energy shows dual nature.(2)According to wave theory.its behaves as wace during propagation while according to corpuscular theory it photons.(3)The intensity and quality of life influence the process of photosynthesis.(4)The AMOUNT of energy in a photon is called a QUANTUM.(5)The amount of energy present in a photon is inversely proporatinal to the wavelength of the light,i.e..longer the waveleghth lesser is the energy content and vice versa.(6)The visible light is only a smaal part of electromagnetic spectrum ranging from 390nm nm (Violet light) to 760 nm (red light).This portion is often reffered to as photosynthetically active radiation(PAR).(7)THEMAXIMUM absorption of visible light by photosynthetic pigments occurs in red and blue region.They and orange region show little absorption,while the green region shows negligible absorption.(8)The green light is mostly redlected and THEREFORE colur of the leaf is mostly green.(9)The highest rate of photosynthesis occurs in red and blue region of spectrum. | |