The speed of light is dependent on the medium it travels through. Light travels fastest in a vacuum than in water or air.
Yes, it travels in waves, but it doesn't need a medium.
A medium.
Sound travels in waves through a medium, such as air, water, or solid materials. When an object vibrates, it creates changes in air pressure that propagate outward as waves. These waves cause particles in the medium to oscillate back and forth, transmitting the sound energy.
Sound travels faster through denser media because their molecules are closer together.
Sound travels faster through denser media because their molecules are closer together.
Sound travels fastest through a nonporous solid medium, such as steel.
In a compression wave, the medium is displaced in the same direction that the wave is travelling. This means that the particles of the medium move closer together and then farther apart as the wave passes through.
The observation that light travels in a straight line can be explained by the property of light known as rectilinear propagation. This property states that light travels in a straight line in a homogenous medium.
The material through which a wave travels is called the medium.
"A compressible medium." "A displaceable medium."
Refraction describes the bending of a wave as it travels into a different medium, due to the change in speed of the wave as it enters the new medium.
"dense medium"