It refracts some and reflects some.
Refraction occurs when light travels from one medium to another having different optical densities.
In this process, heat is transferred by the bodily movement of particles of the medium due to difference in densities of different parts of the medium. convection process is also slow.
speed
it changes in velocity
the light bends
Refraction occurs when light travels from one medium to another having different optical densities.
In this process, heat is transferred by the bodily movement of particles of the medium due to difference in densities of different parts of the medium. convection process is also slow.
In this process, heat is transferred by the bodily movement of particles of the medium due to difference in densities of different parts of the medium. convection process is also slow.
speed
The light reflects or refracts on hitting the medium.
It bends.
it changes in velocity
the light bends
The light ray bends when it enters a medium with different density. It either bends towards or away from the normal depending on whether the medium is more dense or less dense.
When light passes from one medium to another with a different refractive index, andnot in a direction perpendicular to the boundary between the media, its speed changes.
It changes, in accordance with the optical density of the medium.
There's no reason to expect that the intensity of light must necessarily change when it enters a different medium.