outer space
Air
Light waves ALWAYS travel at the "Speed of Light"....based on the medium that the waves are traveling through. It just so happens that they go the FASTEST in a VACUUM.
Light waves travel fastest through vacuum, at nearly 30 million meters per second. Light travels more slowly through other substances such as air and water, and can be absorbed.
Light waves, like all electromagnetic waves, travel without a medium, so they can travel through empty space. Sound waves, on the other hand, do require a medium to travel or propagate; therefore, they can not travel through empty space.
Sound waves travel the fastest through nonporous solids.
it goes fastest through metal
Yes. Sound waves travel fastest through solids.
In a vacuum.
Electromagnetic waves travel the fastest, at the speed of light in a vacuum, 3.0 x 108 m/s.
P waves travel through solids, liquids, and gases. it is the fastest of all the waves.
Sound waves travel faster through denser media, like solids, because the molecules are closer together, making it easier to pass the sound from molecule to molecule. Light and other electromagnetic waves travel faster through less dense media, and they travel fastest through a vacuum.
The light wave, which is electromagnetic energy, is the fastest wave. The speed of light, which is a physics constant, is the speed of light in a vacuum, and no object with mass can be accelerated to this speed.