Want this question answered?
Its speed changes but its frequency remains the same.
Light bends because of the difference of speed in each medium.
refraction
Waves may bend if they move from one medium to another.
A light wave can slow down or speed up when it enters another medium. Since the speed of wave motion in general depends on characteristics of the environment, you can always expect the speed of a wave to change as it moves from one medium to another. In the case of sound, it's the mechanical characteristics that matter, whereas for light and other electromagnetic waves, the determining characteristics are the electrical ones. So the speed of light changes when it enters a different medium. Now, since the product of (frequency) x (wavelength) is the wave speed, and the frequency can't change, we notice that if the speed changes, then the wavelength also changes in a new medium. Furthermore, right at the interface ... the boundary between the two media ... if the light doesn't hit the boundary exactly perpendicular to it, then we say that the light is "refracted" at the boundary, meaning that the light leaves the boundary in the new medium in a different direction compared to its direction in the previous medium.
If your talking about wavelengths, like in light, it might change depending on the medium it moves trough...
If your talking about wavelengths, like in light, it might change depending on the medium it moves trough...
when light rays mave from one medium to another such as from air to water
The speed changes. (and sometimes the angle.)
that changes the speed of the light, which makes the light bend
When a toy car travels from a plain floor to the grass lawn we see that it deflects.Similarly light too bends when it changes its medium.This bending can be seen at the boundary of the two mediums that separates them.
it will not bend if the two media have the same index of refraction.