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Photosynthetically active radiation (PAR) represents which of the following range of wavelength?
  • a)
    340-450 nm
  • b)
    400-700 nm
  • c)
    450-950 nm
  • d)
    500-600 nm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Photosynthetically active radiation (PAR) represents which of the foll...
To recognize quantitatively how light influences the rate of photosynthesis, we have to first study how a more light energy sunlight affords. at the upper boundary of the surroundings and at the earth’s mean distance from the sun, the full irradiance is 1360 J m2 s1 (the sun constant), which includes ultraviolet and infrared wavelengths.
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Most Upvoted Answer
Photosynthetically active radiation (PAR) represents which of the foll...
Photosynthetically active radiation (PAR) is the portion of the electromagnetic spectrum that is absorbed by plants and used in photosynthesis. PAR ranges from 400-700 nm and is commonly referred to as the "visible spectrum" since it includes the colors that are visible to the human eye.

Explanation:

PAR is essential for plant growth and development, as it provides the energy needed for photosynthesis. Photosynthesis is the process by which plants convert light energy into chemical energy, which is then used to produce glucose and other organic compounds.

PAR is often measured in units of micromoles per square meter per second (ΞΌmol m-2 s-1), which represents the number of photons of light that are available for photosynthesis. This measurement takes into account both the intensity of the light and the wavelength of the photons.

PAR is often used by horticulturists and growers to optimize plant growth and yield. By providing the optimal amount of PAR, growers can ensure that their plants are receiving the energy they need to grow and produce healthy crops.

In summary, PAR represents the range of wavelengths that are used by plants in photosynthesis. This range includes the visible spectrum, which is essential for plant growth and development. PAR is measured in units of micromoles per square meter per second and is used by growers to optimize plant growth and yield.
Community Answer
Photosynthetically active radiation (PAR) represents which of the foll...
B option is right because green plants used these ranges (400-700) to utilise solar energy to make food
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Photosynthetically active radiation (PAR) represents which of the following range of wavelength?a)340-450 nmb)400-700 nmc)450-950 nmd)500-600 nmCorrect answer is option 'B'. Can you explain this answer?
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