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Which range of wavelenght (in nm) is cal...

Which range of wavelenght (in nm) is called photosyntehtically active radiation (PAR)?

A

100-390

B

390-430

C

400-700

D

760-100,00

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks for the specific range of wavelengths that is classified as Photosynthetically Active Radiation (PAR). 2. **Defining PAR**: Photosynthetically Active Radiation refers to the portion of the light spectrum that plants use for photosynthesis. 3. **Identifying the Wavelength Range**: The range of wavelengths that is considered PAR is from 400 to 700 nanometers (nm). 4. **Significance of the Range**: This range falls within the visible spectrum of light, which is crucial for the process of photosynthesis in higher plants. 5. **Comparison with Other Wavelengths**: - Wavelengths from 100 to 300 nm are classified as ultraviolet (UV) light. - Wavelengths from 390 to 430 nm are part of the infrared range, also known as near-infrared (NIR). - Wavelengths from 760 to 10,000 nm are classified as mid-infrared (MIR). 6. **Conclusion**: Therefore, the range of wavelengths known as Photosynthetically Active Radiation (PAR) is from 400 to 700 nm. ---
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks for the specific range of wavelengths that is classified as Photosynthetically Active Radiation (PAR). 2. **Defining PAR**: Photosynthetically Active Radiation refers to the portion of the light spectrum that plants use for photosynthesis. 3. **Identifying the Wavelength Range**: The range of wavelengths that is considered PAR is from 400 to 700 nanometers (nm). ...
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