Wavespeed
amplitude
The speed at which a wave passes through water or other medium is called phase velocity.
wave speed
When the density of the medium increases, the speed of the sound wave increases.
Electromagnetic wave, namely, light as it travels through denser medium its speed decreases from its speed when it travels through air or vacuum.
The medium in which it travels through
Frequency
The speed of light is dependent on the medium it travels through. Light travels fastest in a vacuum than in water or air.
Sound is affected by the media. It travels high speed in solids generally.
Over 6,000 mph.
density
The speed of sound depends on the density of the medium the waves are traveling through. The denser the medium the higher the speed. For example, sound travels faster through water than it does through air.