The index of refraction is precisely how much faster light travels in a vacuum than in the given medium. In this case, 15. Or perhaps you meant 1.5, which would be more typical for glass - answers.com sometimes eliminates some symbols from the questions.
2 x 108 meters per second
The refraction of light through water. Basically light travels through a surface such as water and the different light spectrums get broken down giving you the colors you see.
Both light and sound travel. Light travels the fastest.
Neutrinos.
Sound is a form energy that travels to us through compressional (or longitudinal) waves.
what
Refraction.
Refraction occurs when light travels from one medium to another having different optical densities.
Refraction
Refraction.
Refraction
Refraction is what light does when it travels from one material to another. Refraction is when the light changes direction because it is passing through one medium to another.
true
Refraction
by refraction
Water's index of refraction is 1.333
The change in wave speed causes refraction sinv1/v1 = sinv2/v2.
this might be refraction