The speed of light in air is :

Options

A. `3xx10^8 m s^(-1)`
B. `330 ms^(-1)`
C. `5100 ms^(-1)`
D. `3xx10^(10) ms^(-1)`

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the speed of light in air. We need to identify the commonly accepted value for this speed.

2. **Known Value**: The speed of light in a vacuum is approximately \(3 \times 10^8\) meters per second. This is a fundamental constant in physics.

3. **Speed of Light in Air**: While the speed of light in a vacuum is \(3 \times 10^8\) m/s, the speed of light in air is slightly less due to the presence of air molecules. However, for most practical purposes, we can round this value to \(3 \times 10^8\) m/s.

4. **Actual Value**: The precise speed of light in air is approximately \(299,792,458\) meters per second. For simplicity in calculations and discussions, we often use the rounded value of \(3 \times 10^8\) m/s.

5. **Conclusion**: Therefore, the speed of light in air is approximately \(3 \times 10^8\) meters per second.

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