Here's the key point: All electromagnetic radiation, including radio waves, travels at the speed of light in a vacuum. This speed is approximately 299,792,458 meters per second (m/s), which is often rounded to 3 x 10^8 m/s.
The wavelength of a radio wave doesn't affect its speed. It does, however, relate to its frequency through the following equation:
* c = fλ
where:
* c is the speed of light (approximately 3 x 10^8 m/s)
* f is the frequency of the wave (in Hertz, Hz)
* λ is the wavelength of the wave (in meters, m)
Therefore, a radio wave with a wavelength of 3 meters has a frequency of:
* f = c / λ = (3 x 10^8 m/s) / (3 m) = 1 x 10^8 Hz (or 100 MHz)
In summary: The velocity of a radio wave with a wavelength of 3 meters is approximately 3 x 10^8 m/s, which is the speed of light.
