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The velocity of light is greatest when travelling through a vacuum.
When travelling through something else, a glass material say, then its velocity is slower.
The refractive index is the ratio of the speed of light in a vacuum to the speed of light in that substance. For example light travels in a vacuum about 1.3 times as fast as in water, so we say water has a refractive index of 1.3.
And it is likely that the velocity in the glass will be different at different wavelengths of light.
What else can I help you with?
How Light passes through water?
It happens by the refraction of light.
What happens when light passes through a cylindrical lens?
sh@@ happens
What happens when light passes through lens?
The light refracts or bend .
What happens when light scatters?
It is redirected as it passes through a medium.
What happens to light when it passes through different substances?
it refracts
What happens to light when it scatters?
It is redirected as it passes through a medium
What kind of light is the bending of a ray of light when it passes through something?
Refracted light
What happens during refraction of light as light passes through a prism?
It shows color.
What happens when light passes through vacuum?
it travels at c (speed of light in a vacuum)
What happens to light when it passes through a rectangular block?
it makes a rainbow!
What happens when light passes through a prism and is refracted?
When light passes through a prism, it is refracted, which means it is bent or separated into different colors. This happens because light waves travel at different speeds through different materials, causing them to change direction.
What happens to light that passes through a prism?
the colors of light seperates to show all the colors of light.
