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The speed of light though substances is slower than the speed of light in a vacuum. As the light passes from air to water it slows and the ray's path is translated towards the normal to the air/water interface slightly.
Light bends when it passes at an angle into a medium of a different density. When light passes from a less dense medium into a denser medium, like from space into Earth's atmosphere or from air into water, it bends toward the normal, which is an imaginary line perpendicular to the boundary between the two media where the light passes through. Light passing from a denser medium to a less dense medium bends away from the normal.
Refraction
it deviates its path and meet where water and air surfaces meet.
true
Light bends as it passes from the water to the air - this changes the perspective of where the object is.
The speed of light though substances is slower than the speed of light in a vacuum. As the light passes from air to water it slows and the ray's path is translated towards the normal to the air/water interface slightly.
Light bends when it passes at an angle into a medium of a different density. When light passes from a less dense medium into a denser medium, like from space into Earth's atmosphere or from air into water, it bends toward the normal, which is an imaginary line perpendicular to the boundary between the two media where the light passes through. Light passing from a denser medium to a less dense medium bends away from the normal.
Refraction
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.
it deviates its path and meet where water and air surfaces meet.
Light bends towards the denser medium. If the light passes at an angle from air into water the angle will increase. An object underwater will appear closer to you than it actually is when you look down into the water at an angle.
When light passes into the slab it is changing medium from less to more dense. When that happens the light slows down and bends towards from the normal
refraction is the cause================================Because light bends when it crosses the boundary between air and water,but when your brain judges the direction of an object, it assumes that thelight from it came to you straight.
That depends what it comes out of. If it passes into air from vacuum, thenits speed decreases. If it passes into air from water or jello, then its speedincreases.
It increases.