Electromagnetic wave travel in medium at a speed of `2.0xx10^8ms^-1`. The relative permeability of the medium is 1.0. Find the relative permitivity.

Explanation

To solve the problem of finding the relative permittivity of a medium in which electromagnetic waves travel at a speed of \(2.0 \times 10^8 \, \text{m/s}\) with a relative permeability of \(1.0\), we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Values**:
- Speed of the electromagnetic wave, \( V = 2.0 \times 10^8 \, \text{m/s} \)
- Relative permeability, \( \mu_r = 1.0 \)
- Speed of light in vacuum, \( C = 3.0 \times 10^8 \, \text{m/s} \)
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