How many wavelength of `Kr^(86)` are there is one metre
1553164.13
1650763.73
2348123.73
652189.63

Options

A. 1553164.13
B. 1650763.73
C. 2348123.73
D. 652189.63

Explanation

To determine how many wavelengths of \( \text{Kr}^{86} \) are there in one meter, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of a Meter**:
The meter is defined based on the wavelength of light emitted by a specific atom. In this case, it is defined as the distance that contains a certain number of wavelengths of the orange-red light emitted by an atom of \( \text{Kr}^{86} \).

2. **Identify the Number of Wavelengths**:
According to the standard definition, one meter contains approximately \( 1650763.73 \) wavelengths of the orange-red light emitted by \( \text{Kr}^{86} \).

3. **Select the Correct Option**:
Given the options:
- 1553164.13
- 1650763.73
- 2348123.73
- 652189.63

The number of wavelengths of \( \text{Kr}^{86} \) in one meter is exactly \( 1650763.73 \).

4. **Conclusion**:
Therefore, the correct answer is \( 1650763.73 \).

### Final Answer:
The number of wavelengths of \( \text{Kr}^{86} \) in one meter is **1650763.73**.

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