The speed of the light wave slows
Some light is reflected off the surface of the water
The light that enters the water is "refracted" (the direction of propagation changes due to the different indexes of refraction in air and water)
Eventually the water will absorb all the energy of the light if the water is deep enough
-- Their speed decreases.
-- If they didn't enter the water perpendicular
to the surface, then their direction changes.
Its speed increases, and it usually changes its direction.
The light slows, and its direction at the interface deflects toward the normal.
When light passes from air to water, it refracts, that is, the path of light bends. This occurs because air and water are two different media having different densities.
it slows down.
It happens by the refraction of light.
Refraction
if the light rays are coming from air, they will be refracted at the water boundary towards the normal. refraction occurs because the light rays change speed at the boundary as they travel faster in a less dense medium (air) than they do in a more dense medium (water). hope this helps. alert me if it doesn't :)
this occurs when an object takes in light waves
Electromagnetic waves such as light can pass through material medium such as water, glass etc and at the same time it could pass through vacuum ie a medium of free space.
They refract
The light waves can be reflected, absorbed, they can pass the object or be refracted.,
It happens by the refraction of light.
Refraction
horizontal waves only
if the light rays are coming from air, they will be refracted at the water boundary towards the normal. refraction occurs because the light rays change speed at the boundary as they travel faster in a less dense medium (air) than they do in a more dense medium (water). hope this helps. alert me if it doesn't :)
diffraction
horizontal waves only
this occurs when an object takes in light waves
The speed of light in a material medium is slower than the speed of light in a vacuum. This is a consequence of the electromagnetic wave interacting with the atoms and molecules in the medium, a process merits its own question.Of course, this assumes the medium is transparent for the wavelength of light travelling through it.Light waves slow down when they pass through a medium, eg glass or water
Light waves do not pass through opaque materials. Light is absorbed or reflected by opaque things. To be sure there is some scattering, nothing is entirely absorbent.
its simple. they dont