It depends on the REFRACTIVE INDEX of the Medium it is traveling though. That INDEX is directly dependent on the DENSITY of the Material.
it depends on the deepness of the water, refraction in water deep enough would cause light to refract in a curved fashion, creating a brachistrone.
The incident ray (the incoming light) hits the water and then the speed is slowed. It is called 'Refraction'. Which is the bending of light through a translucent or transparent object.
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the light slows in speed and refracts due to glass being denser than air.
You are thinking of a lens. If it is to form an image you need a convex lens, also called a converging lens.
The speed of light depends on the electrical properties of the medium (stuff) it's travelingthrough. Its speed is maximum in vacuum ... 299,792,458 meters per second ... and it hasdifferent speeds in any material ... e.g., air, water, glass, jello, etc. As long as the light staysin the same material, its speed doesn't change.In water, the speed of light depends slightly on the wavelength of the light. For thewavelength of 400 nm (reddish light), the refractive index of water is about 1.34 ,so the speed of that light is about 223,700,000 meters per second ... 25.4% lessthan it is in vacuum.
Assuming you're talking about transparent substances... It bends (refracts). The amount depends on the difference between the refractive index of each substance.
It refracts light
If something refracts light it bends it.
No, a mirror can not refrect. Instead, it can reflect. Water is an example of a substance that refracts.
The light refracts or bend .
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