What is the difference between a dimensional constant and a dimensionless constant?

Explanation

To understand the difference between a dimensional constant and a dimensionless constant, let's break it down step by step.

### Step 1: Define Dimensional Constants
Dimensional constants are quantities that have a constant value and possess dimensions. This means they can be expressed in terms of the fundamental physical dimensions such as length (L), mass (M), time (T), etc.

**Example:**
- The speed of light (c) is a dimensional constant with a value of approximately \(3 \times 10^8\) meters per second.
- Its dimensions can be expressed as \(LT^{-1}\), indicating that it has dimensions of length divided by time.
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