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Medium A is the more optically dense medium. As when the light enters B its speed increases taking it toward the normal.
The change in speed causes the light to bend. If it is travelling from an optically dencer to an optically rarer medium the ray will bend away from the normal. But if it is travelling from an optically rarer to an optically denser medium then it will bend towards the normal.
because of difference in density of the medium, water is a more dense medium than air.
change of medium causes light to bend
Without getting too complicated, the "more dense medium"'s gravitational pull alters the path of the light. The ray of light will bend away from the normal.
Medium A is the more optically dense medium. As when the light enters B its speed increases taking it toward the normal.
The change in speed causes the light to bend. If it is travelling from an optically dencer to an optically rarer medium the ray will bend away from the normal. But if it is travelling from an optically rarer to an optically denser medium then it will bend towards the normal.
The change in speed causes the light to bend. If it is travelling from an optically dencer to an optically rarer medium the ray will bend away from the normal. But if it is travelling from an optically rarer to an optically denser medium then it will bend towards the normal.
because of difference in density of the medium, water is a more dense medium than air.
The refractive index of air is about 1.0003, and of quartz about 1.45, so quartz is the more "optically dense" medium in this situation. When light goes from a less dense medium to a more dense medium, it is refracted toward the normal. The normal is the imaginary line perpendicular to the surface where the light enters.
change of medium causes light to bend
Without getting too complicated, the "more dense medium"'s gravitational pull alters the path of the light. The ray of light will bend away from the normal.
A medium with a higher index of refraction, like diamond, is more dense than the medium with a lower index of refraction, like air. If the ray of light is moving from the less dense medium (lower index of refraction), to a more dense (higher index of refraction) the ray of light bends TOWARDS the normal.
As you should know, as light travels from one medium into another more optically dense medium (such as from air into water) the light is refracted towards the normal. But why does the light appear to bend and refract? Light acts not only as a particle, but also as a wave. When the light hits the more optically dense medium it slows down. This also happens with water waves. As the waves come towards the shore the ocean becomes more shallow and they speed up, when the water waves speed up they bend away from the normal. The same thing is happening with the light waves. As light waves are hitting the more optically dense material, because they slow down they oppose and opposite effect to the water waves and bend towards the normal. I hope this helped. :)
Light bends because of the difference of speed in each medium.
It must pass though a medium from an another medium.
When traveling through a dense material, light doesn't necessarily bend at all.The bend occurs at the boundary between two different materials, and whetherit bends away from the normal or toward it depends on both of their densities.