Wavelengths
A radio wave is a kind of electromagnetic wave.
Speed is not a wave.
Electromagnetic wave.
Doom
A standing wave?
YES
The wave is called an electromagnetic wave.
a wave that the particles of the medium mover perpendicular to the direction the wave is traveling
I would rather say that light IS a wave, not that it HAS a wave. It is a type of electromagnetic wave.
Longitudinal wave.
radio wave
The P wave