What seeing is, is seeing rays of light - you see light.
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When a ray of light passes from air to water, it slows down and the ray of light bends towards the normal to its plane of entry. This is called refraction, the ray of light is refracted. The refractive index of air is less than that of water.
You can. without rays of light you could not see
A ray of light will change direction when going out of water, into the air. This is called "Refraction".A ray of light will change direction when going out of water, into the air. This is called "Refraction".A ray of light will change direction when going out of water, into the air. This is called "Refraction".A ray of light will change direction when going out of water, into the air. This is called "Refraction".
A ray of light changes direction when it gets out of the water, and into the air. This is called "refraction".A ray of light changes direction when it gets out of the water, and into the air. This is called "refraction".A ray of light changes direction when it gets out of the water, and into the air. This is called "refraction".A ray of light changes direction when it gets out of the water, and into the air. This is called "refraction".
The ray must decrease in speed.
UV bulbs usually have a coating on the inside that glows when the light is on, providing indication in the visible light part of the spectrum.
A prism
The ray will bend towards the normal.
Refractive index of a medium = speed of light in air / speed of light in medium If a ray of light passes from air into that medium then the refractive index (R.I) can be given by: R.I = sin(angle in air) / sin(angle in medium) Angle in air is the angle between the ray of light and the normal in air.
if the ray of light enters the water from air,refraction takes place and the ray of light will bend towards the normal due to higher optical density.
As the ray traverses from glass into air its speed increases. So it bends away from the normal.