An antenna is placed in a dielectric medium of dielectric constant 6.25. If the maximum size of that antenna is 5.0 mm, it can radiate a signal of minimum frequency of______ GHz. (Given up = 1 for dielectric medium)

Explanation

To solve the problem, we need to find the minimum frequency at which an antenna can radiate when placed in a dielectric medium with a dielectric constant of 6.25 and a maximum size (height) of 5.0 mm.

### Step-by-Step Solution:

1. **Understand the relationship between frequency, wavelength, and speed of the signal**:
The frequency \( f \) can be calculated using the formula:
\[
f = \frac{v}{\lambda}
...