Refraction occurs when light passes from one medium to another. If you have your feet in a pool your legs looked bent because the light is being refracted as it moves from under the water through the air on its way to your eye.
The longer the wavelength, the greater the angle of refraction.
c divided by the index of refraction of the medium = the speed of light in the medium.
Refraction ~ look to related link below .
The index of refraction of a substance is(The speed of light in vacuum) divided by (the speed of light in the substance) .
terms realated to refraction of light are * interface * incident ray * refracted ray * point of incidence *normal *angle of incidence * angle of refraction *angle of deviation
This is related to a change in the direction of the light - this is called refraction.
What is Refraction?? What is Refraction??
The following assumes you already know the speed of light in a vacuum. You can do measurements related to refraction, applying Snell's law to the angles you measure. This gives you the index of refraction.Once you know the index of refraction, you divide the speed of light in the vacuum by the index of refraction, to obtain the speed of light in water.
It is called refraction, but some material bounces off the light and it is called reflection.
The substance's index of refraction isSpeed of light in vacuum / Speed of light in the substance
light undergoes refraction when the matter changes the speed of light
The light refraction is decreased.