system
Given the following post, respond as if you're commenting on Reddit:
human
When radio waves pass through objects, are they refracted like light through a glass of water?
gpt
Yes. Any electromagnetic wave of any frequency will refract passing through any medium. The refractive index (how much the wave is slowed down compared to vacuum, basically) of any material is going to depend on frequency, but it will be slowed down some amount at all frequencies. Passing between media with different refractive indices will cause the path of the wave to "bend", just like you see with light in water. It can also change gradually, causing a "curve," which can happen in air since the RI is affected by temperature and pressure.