Light travels through different things (such as air, water, glass, plastic) at different speeds. When a light wave is passing one substance and encounters another (for instance, traveling through air and gets to glass), the difference in the speed causes the light wave to bend. This is what causes rainbows and a spectrum and fish to appear in a different place than where they really are.
Different materials have different refractive indices and so light travels with different velocity in different materials. Hence refraction becomes possible. So different speed of light is the main cause.
Friction
Additional answer.
No, friction does not come into it.
yes light does react as it passes through different materials.for example if it passes through a translucent material it gets dimmer.
depends with the medium of the material. if the material is transparet then light pass through but if the material is opaque then light cannot pass through
When light travels through anything that is not a vacuum, it will usually slow down.
Light travels through two things: either empty space, or space which contains transparent materials. Some paterials are only partially transparent or translucent, in which case some light does travel through it, but not all the light will get through.
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.
yes. if light didn't travel through air, then you wouldn't be able to see anything!
through nothing
light cant travel through opague materials, or anything you cant see through.
There are many materials that light can not travel through which are called opaque objects.
Transparent
no
Light travels fastest through space which has no air. Space is a vacuum which is the fastest way for light to travel.
A material through which light (or a certain color of light) won't pass through is said to be OPAQUE for light (or for that color of light). Most materials around us are opaque for visible light; only a few materials, such as air and other gases, water, and glass, are transparent, meaning they do let light through.
The name is "electromagnetic waves". They can travel through empty space, and - depending on the specific frequency - through certain materials. For example, light can travel through glass.
TRANSCULENT and transparent materials ...............................................................Gho$t
slow down.
The type of light, the distance it has to travel and the substance that it passes through.
When light travels through anything that is not a vacuum, it will usually slow down.
TRANSCULENT and transparent materials ...............................................................Gho$t