The number of significant figures in 0.06900 is

Options

A. 5
B. 4
C. 2
D. 3

Answer

To determine the number of significant figures in the number 0.06900, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Number**: The given number is 0.06900.

2. **Analyze Leading Zeros**:
- The zeros before the first non-zero digit (which is 6 in this case) are called leading zeros.
- Leading zeros are not considered significant.
- Therefore, the zeros in 0.06900 (the two zeros before 6) do not count towards the significant figures.

3. **Identify Non-Zero Digits**:
- The non-zero digits in 0.06900 are 6 and 9.
- Both of these digits are significant.

4. **Analyze Trailing Zeros**:
- The zeros that come after the last non-zero digit (which are the two zeros after 9) are considered significant if there is a decimal point present in the number.
- Since there is a decimal point in 0.06900, these trailing zeros are also counted as significant.

5. **Count the Significant Figures**:
- Now, we can count the significant figures:
- The significant figures are: 6, 9, 0, and 0.
- Thus, the total number of significant figures in 0.06900 is 4.

### Final Answer:
The number of significant figures in 0.06900 is **4**.

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