The wavelength of light visible to eye is of the order of

Options

A. `10 Å` to `100 Å`
B. `4000 Å` to `8000Å`
C. `8000 Å` to `10000 Å`
D. `10000 Å` to `15000 Å`

Answer

To determine the wavelength of light visible to the human eye, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Electromagnetic Spectrum**:
The electromagnetic spectrum includes a range of wavelengths, from radio waves to gamma rays. Visible light is just a small portion of this spectrum.

2. **Identifying the Visible Spectrum**:
The visible spectrum is often represented by the acronym VIBGYOR, which stands for:
- V: Violet
- I: Indigo
- B: Blue
- G: Green
- Y: Yellow
- O: Orange
- R: Red

3. **Determining the Wavelength Range**:
The wavelengths of visible light range approximately from 400 nanometers (nm) to 700 nm. In terms of angstroms (Å), this can be expressed as:
- 400 nm = 4000 Å
- 700 nm = 7000 Å

4. **Selecting the Correct Option**:
Based on the provided options, we need to identify which option falls within the range of 400 nm to 700 nm (or 4000 Å to 7000 Å).

5. **Conclusion**:
The correct answer for the wavelength of light visible to the human eye is in the range of 400 nm to 700 nm, or equivalently, 4000 Å to 7000 Å.

### Final Answer:
The wavelength of light visible to the eye is of the order of 400 nm to 700 nm (or 4000 Å to 7000 Å).

---