Maximum photosynthesis occurs in light

Options

A. Red
B. Green
C. Very high light
D. Continuous light.

Answer

### Step-by-Step Solution:

1. **Understanding Photosynthesis**: Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water. This process primarily occurs in the chloroplasts of plant cells.

2. **Identifying Photosynthetically Active Radiation (PAR)**: The light that plants use for photosynthesis is known as Photosynthetically Active Radiation (PAR). This radiation falls within the wavelength range of 400 to 700 nanometers.

3. **Analyzing the Wavelength Spectrum**: The visible light spectrum, often referred to as Wibgyor (Violet, Indigo, Blue, Green, Yellow, Orange, Red), has different wavelengths. Within this spectrum, red light (approximately 620-750 nm) and blue light (approximately 450-495 nm) are most effective for photosynthesis.

4. **Determining the Most Effective Light for Photosynthesis**: Research indicates that red light is the most effective for photosynthesis, followed closely by blue light. Green light (approximately 495-570 nm) is the least effective because plants reflect this light, which is why they appear green.

5. **Conclusion**: Therefore, the maximum photosynthesis occurs in red light, making it the correct answer to the question.

### Final Answer:
**Maximum photosynthesis occurs in red light.**

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