`1^(@)` A is equal to

Options

A. A) `10^(-8)` m
B. B) `10^(-10)` m
C. C) `10^(-6)` m
D. D) `10^(-12)` m .

Answer

To solve the question "1° A is equal to what?", we need to understand what "A" represents in this context.

### Step-by-Step Solution:

**Step 1: Identify what "A" stands for.**
- In this context, "A" represents "Angstrom," which is a unit of length.

**Step 2: Understand the definition of an Angstrom.**
- An Angstrom (symbol: Å) is a metric unit of length that is commonly used to measure very small distances, such as atomic and molecular scales.

**Step 3: Convert Angstrom to meters.**
- The value of 1 Angstrom is defined as \(1 \, \text{Å} = 10^{-10} \, \text{meters}\).

**Step 4: Write down the final answer.**
- Therefore, \(1 \, \text{° A} = 10^{-10} \, \text{meters}\).

### Final Answer:
1° A is equal to \(10^{-10}\) meters.

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