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Physics - Bending light through glass


Category: Physics

Why does the light bend when it goes through glass at an angle? Does light bend through glass? please explain briefly.

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Think of light like a car and the glass like the side of the road. When a car goes off the side of the road, the first part of the car (let's say it was the passenger's side) slows down because there is more friction there versus the road. The right side of the car is slows down while the left side keeps accelerating causing the vehicle to curve.

It is the same way with light. Imagine light as a long rectangle. When one corner hits the new medium it slows down while the upper corner continues to travel at its original speed causing the light to "bend."
Submitted by:
Joshua
1 year ago
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When visible light passes through a transparent material such as glass, its velocity changes according to the Index of Refraction of the material. This slowing is caused by the electrical fields in the material. When the beam of light enters the material at an angle, it is bent or refracted as a result of the decrease in velocity. The refraction is similar to the change in direction of soldiers marching into a muddy field.
Submitted by:
Sam Smith
1 year ago
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This is because glass and air have different densities, so light bends/travels at different speeds through different mediums.
Submitted by:
Anonymous
1 year ago
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Think of light like a car and the glass like the side of the road. When a car goes off the side of the road, the first part of the car (for example, let's say it was the driver's side) slows down because there is more friction there versus the road. The left side of the car is slows down while the left side keeps accelerating causing the vehicle to curve.

It is the same way with light. Imagine light as a rectangle. When one of the corners hits the new material, that corner slows down and the other corner will speed up. This is what causes light to "bend".

You can see this if you stick a straw into a cup of water, you would be able to see that the straw has "moved" as soon as it hit the water's surface. It would also help if it was a transparent cup since it would be much easier to see
Submitted by:
Anonymous
8 months ago
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Imagine in your head that light was represented as a car and some transparent material was represented as the side of the road where it would be able to slow you down more than the road. The car is going along normally and suddenly the passenger’s side hits the side of the road. The wheel on the passenger’s side would slow down while the driver’s side is still going at the same speed since the passenger’s wheel hit the side of the road. This causes the vehicle to turn towards the passenger’s side. Now, imagine that the car was actually light and the side of the road was actually a transparent material that slowed the light down. If the light hit this transparent material at an angle, it would come out of the other side at a different angle that if the material wasn’t there. If the light was just a straight line, it would come out on the other side of the transparent material at the same angle.
Submitted by:
lol
8 months ago
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As glass and air have different densities, light slows down when it enters the thicker medium of glass and bends towards the glass.
Submitted by:
Abhishek
1 year ago
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When light passes through glass it bends or refracts as it passes into the glass. As it leaves the glass the light bends or refracts in the opposite direction,and if the glass is flat it leaves the glass in the same direction as when it entered.
Submitted by:
cdc
7 months ago
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This is because glass and air have different densities and so light bends/travels at different speeds through different mediums.
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Anonymous
6 months ago
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When light enters to glass from air it bends because of the changes in their refractive index.The glass is higher refractive index than the air.Then the phenomenon refraction take place in the glass.
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Anonymous
6 months ago
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This is because glass and air are having different densities. Thus light bends or travels at different speeds through different mediums.
Submitted by:
jacwre
6 months ago
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This is due to the difference in densities of glass and air so light bends or travels at different speeds through different mediums.
Submitted by:
Anonymous
6 months ago
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This is because glass and air have different densities. That is why the light bends/travels at different speeds through different mediums.
Submitted by:
Anonymous
5 months ago
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This is as glass and air have different densities, so light bends/travels at various speeds through different mediums.
Submitted by:
Anonymous
5 months ago
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This is because glass and air differ in densities, so light bends/travels at different speeds through different mediums.
Submitted by:
Anonymous
5 months ago
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Light exhibits wave characteristics. It is a characteristic of light to move in the direction of higher density of the medium it traverses... that's just how any kind of wave behaves, whether sound, radio, or light. If light enters a medium at right angles it will not be inclined to bend, but if it enters at even the slightest angle it will bend towards the medium. It is why eye glasses work and can focus light.
Submitted by:
David Silvercloud
2 months ago
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A lens like what is used in eyeglasses, cameras or a magnifying glass changes the way that light bends. In that the surfaces are not flat, and the bending or refracting changes based on the shape of the lens.

With this things can appear larger or smaller based on the shape of the lens.
Submitted by:
Anonymous
1 year ago
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forgot to say hi lol
Submitted by:
lol
8 months ago
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When light passes through glass it bends or refracts as it passes into the glass. As it leaves the glass the light bends or refracts in the opposite direction,
Submitted by:
Anonymous
12 months ago
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When visible light passes through a transparent material such as glass, its velocity changes according to the Index of Refraction of the material.the bending or refracting changes based on the shape of the lens.
Submitted by:
aleem
9 months ago
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as glass and air have different light slows down when it enters the thicker medium of glass and bends towards the glass.
Submitted by:
niki
9 months ago
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When light passes through glass it bends or refracts as it passes into the glass. As it leaves the glass the light bends or refracts in the opposite direction, therefore if the glass is flat it leaves the glass in the same direction as when it entered.


Submitted by:
Anonymous
1 year ago
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AR*N if ur still there, i had to put the imagine in ur head bit cuz it would hav a green line underneath lol
Submitted by:
arun
8 months ago
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i know everythin
Submitted by:
mr know it all
8 months ago
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u know one thing glass and air have different densities, it is real.

Submitted by:
karthik
1 year ago
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Light consists of seven different colors having seven different wavelengths. These seven wavelengths do not get refracted (this is called phenomenon of bending) similarly. Each color bends differently - longest wavelength(Red light) bends least and shortest wavelength (violet light) bends maximum. While bending the speed slows down because the light is traveling from one medium (Air) to another (Glass). Due to this the whole Light seems to be bending when it strikes through Glass.
Submitted by:
Anupam Thakur
1 year ago

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light (30)   glass (5)   side (9)   material (6)   transparent (3)   direction (4)   bend (3)   angle (3)   leaves (6)   speed (30)  

 

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