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Which way wil a light ray end when it goes from air into glass?
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Why does light change direction in a glass block?
It doesn't it it hits it straight on. But - Light slows down when passing through glass (as compared to air), so think of a light beam as a bunch of soldiers walking side by side. If the ones at on one end of the line slow down then their path will bend.
Why does the light ray bend as it passes from air to glass or from air to water?
Light bends towards the normal when it touches glass or water because the light travels from optically rarer medium to optically denser medium. Here, air is optically rarer medium and water or glass is optically denser medium. Light slows down in the denser medium. As one end of the wave front hits the interface before the other, we get a turning effect, just as when people march in a line abreast the line will bend if the people at one end slow down.
What does an endoscope contain?
A light and a miniature camera at the end of a flexible tube. Plus an air pump to inflate the gut
What causes rainbow effect on edge of sunglasses?
Sunlight coming from the sun is known as white light - it doesn't necessarily look white but maybe a better name would be "neutral". White light is actually made up of many different colors of light mixed together, just like you would mix paint colors together to obtain a new color. Each color within white light has it's own wavelength. Blue has a shorter wavelength than, say, red. All the colors of the rainbow all lined up represent a slightly different wavelength- like lining up all the children in a school according to their height - tall at one end, short at the other. As white light passes through things like glass, the ray of light is bent when it passes from air into the glass, and again when it passes from the glass back into the air on the other side. These are called medium boundaries - boundaries between one medium (say air) and another (say glass, or water). Each different color is bent a different amount according to how long or short its wavelength is. So as the light passes through the medium boundaries, they filter each color into a slightly different path, spreading them out to display on a wall or on your eye as a rainbow.
What is the traveling of concentrated light through long tiny fibers of glass to carry sound?
Fiber optics does not transmit sound. The long tiny fibers are long narrow strands of glass or a glass-like material generally referred to as optical fibers. Light travels inside these strands with little loss. Modulating the light makes the light into a signal and so the light can carry information. One common use of optical fibers to transmit information is the use to communicate phone calls, so sound is convered to a light signal and transmitted through optical fibers and at the other end it can be converted back into sound. Optical fibers do not transmit sound but transmit light that contains the information abut the sound. The phase "concentrated light" does not really apply to this process in an obvious way because "concentrated" is a term with meaning only in a comparative sense. Light is transmitted through optical fibers and carries digital information of all sorts.
Why does light change direction in a glass block?
It doesn't it it hits it straight on. But - Light slows down when passing through glass (as compared to air), so think of a light beam as a bunch of soldiers walking side by side. If the ones at on one end of the line slow down then their path will bend.
What happened when a ray of light is shone at a glass block?
It all depends on the angle if incidence. In general the light will refract i.e. bend through the glass and come out at the other end. Also, the speed of light will vary through the glass.
Why does the light ray bend as it passes from air to glass or from air to water?
Light bends towards the normal when it touches glass or water because the light travels from optically rarer medium to optically denser medium. Here, air is optically rarer medium and water or glass is optically denser medium. Light slows down in the denser medium. As one end of the wave front hits the interface before the other, we get a turning effect, just as when people march in a line abreast the line will bend if the people at one end slow down.
Why should the light ray be reflected rather than refractive in fiber optics?
Firstly, a fiber optic cable transmits light from one end of the fiber optic cable to the other end. You can kind of think of the fiber optic cable as a long tube. The way in which light travels from one end to the other is that it gets reflected off the inside parts of this glass or plastic tube by a physical phenomenon known as: Total Internal Reflection. Refraction of light only occurs when light travels from one medium to another. For example, when light travels from air to water, from water to air, from water to oil, etc. In other words, in terms of fiber optics, the only way light will get refracted is if it passes through the glass or plastic tube. But if this happened, then the light will exit the fiber optic cable as it travels from one end of the cable to the other end, and the light would not be properly transmitted, defeating the purpose of fiber optics. In other words, light should be reflective rather than refractive in fiber optics in order for light to be effectively transmitted from one end to the other end of a fiber optic cable.
Describe an activity to demonstrate that Liquid has surface while a gas does not?
Fill a glass with water. The water (liquid) has a surface near the top of the glass. Pour the water out of the glass. Now the glass is full of air. The only thing keeping it in there is the weight of all the other air around the opening of the glass. Remove the surrounding air, and the air in the glass rushes out of it. There is no boundary set up at the 'end' of a parcel of air. Any sample of gas always expands to fill whatever contains it, until it runs up against the container.
What organ Carries food and air?
The pharynx, or throat, carries both food an air. At its end, air goes into the trachea and food into the esophagus.
How was the light bulb built?
Early bulbs were made of glass, blown into a bulb shape, using techniques already common in making glass drinking vessels and ornaments. The filment is inserted at the open end and the glass re-heated to form a seal. The air is drawn out using a suction pump, either attached at the same free end or through the opposite end via a tube. The glass being re-melted to keep a vucuum inside the bulb. Early experiments in making the bulb, made bulbs in the form of a football, with a point at both ends, where the air has been drawn out. It is important to remove the air, to stop the oxygen burning up the filament as it glows white hot. Modern bulbs replace the air with an inert gas, which does the same job.
What do you call when light goes through prism and comes out the other end it starts with re?
refraction
Where does the air taken in by the stomata go?
Most of the air goes to your lungs and some goes to your stomach. Both of them come out of the stomata only. Some air from your stomach is absorbed in your intestine. The remaining pass through lower end of digestive tract.
Why blue light bends more than red in a prism?
In white light various colors of light are mixed together, primarily blue yellow and red. When white light in air passes through a glass prism having a certain refractive index, all the differently colored lights have the same angle of incidence (θ) but each differently colored light has a different emergent angle of refraction, going from red light (at the minimum angle) to blue light (having the maximum angle).According to the refractive index formula n = sin θ ／ sin γ, where n is the refractive index of the prism, sin θ is the sine of the angle of incidence (θ) and sin γ is the sine of the angle of refraction (γ).I believe that is just a different way of describing the effect, not an explanation. Red light in glass travels at a lower speed than in air or vacuum. So when a wavefront hits a flat surface of glass at an angle, the end of the wave front inside the glass travels more slowly than the part of the wavefront that has not yet entered the glass. But the wave front must still be continuous all along its length, and the only way to achieve that is if the wavefront inside the glass proceeds in a tilted direction. The slower the light in the glass, the bigger the change in angle. Green light in glass travels faster than red and slower than blue. So the different colors are spread into different angles of refraction.
What happens when light enters a glass block?
If the Glass Block acts as a Prism, then when you shine white light on a it, the White Light refracts into all Primary Colors. When the Light exits the Prism you can see all the rainbow colors.
Why do we taste food at the end of baking?
Because some of the food smell is caught on the air and when it goes into the air, some goes down the troat and onto the tastebuds, making us think that we are eting eht we are cooking?
