Which of the followings rays has a wavelength of `10^(-10)`m?

Options

A. X-rays
B. Infrared rays
C. Visible light
D. radio waves

Explanation

To determine which ray has a wavelength of \(10^{-10}\) m, we can analyze the wavelength ranges of the different types of electromagnetic waves provided in the options.

### Step-by-Step Solution:

1. **Identify the Wavelength of Interest**:
We need to find which ray has a wavelength of \(10^{-10}\) m.

2. **Review the Wavelength Ranges of Different Rays**:
- **X-rays**: The wavelength of X-rays typically ranges from \(10^{-11}\) m to \(10^{-9}\) m. This means that \(10^{-10}\) m falls within this range.
- **Radio Waves**: The wavelength of radio waves ranges from \(10^{-3}\) m (1 mm) to \(10^{3}\) m. Thus, \(10^{-10}\) m does not fall within this range.
- **Visible Light**: The wavelength of visible light ranges from \(0.4 \times 10^{-6}\) m to \(0.7 \times 10^{-6}\) m, which is also much larger than \(10^{-10}\) m.
- **Infrared Waves**: The wavelength of infrared waves ranges from \(7 \times 10^{-7}\) m to \(10^{-3}\) m, which again does not include \(10^{-10}\) m.

3. **Conclusion**:
From the analysis, we find that the only type of ray that has a wavelength of \(10^{-10}\) m is **X-rays**.

### Final Answer:
The ray with a wavelength of \(10^{-10}\) m is **X-rays**.

---