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Investigates refraction of light
Investigates refraction of light
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Lab Report for Refraction.
Problem: What is the effect of density on the angle of refraction.
Hypothesis: The water will cause the light to refract more.
Background: Refraction is opposite of reflection where it bends the light and does not "bounce" it off of something. When light changes directions it must go through one medium to another at a specific angle to be bent. This bending is called refraction. Refraction causes our brains to be tricked and see an object not in its true position. This is because of how the light is bending. Light travels through different materials at different speeds. For example through air light travels at approximetely 300,000 kilometers per second. The speed of how fast light travels depends on the denisity
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In other materials light travels in a straight line, it can reflect and refract. This depends on what surface it is enteracting with. For example when light collides with a mirror it bounce back in two different angles therefore it is not straight.
3. The three differences between the materials we used was that in one we had liquids in which we tested how the density effects the refraction of light. In a different one we had reflective surfaces where we tested how the path of light was affected with different angles of the reflective surface. The last thing was we had different measurements to be taken because we were looking for different things.
4. The container did affect the results a little bit. This is because instead of it going straight through the liquid it had to go through a denser material of plastic which altered the resulted minimally.
Conclusion: My hypothesis was supported because the water refracted the light more. This is shown by the diagrams and the angles being 30 and 41 .
Application: The law of refraction is used in everyday life by glasses. This is because lenses use the law of refraction to form an image of an object for example magnifying it. Another way we use the law of refraction daily is telesccopes. We use this in refraction because it changes the image by slowing down and bending the light rays to create a visible
5. A second test tube was then filled with water and placed in a test
Human eyes receive and form images from outside, also automatically changes in light and seeing things close up and at a distance. Therefore, we can see most of things from outside world. But without light, we can't see anything. Light travels though space and the sun gives off light rays then enter the eyes they are bent or refracted and these light rays create images or picture of all the objects around you, that's why we can see things very clearly. How light enter the eye, first light enters the eye though pupil which control different amounts of light into our eye. Then crystalline lens helps us see clearly, when we look at near objects crystalline lens will grows thicker and when we look at far objects then it will grows flatter. The crystalline lens and the cornea (the window of the eye) are bending light rays and sending them to the retinain the right direction. For our perfect vision, light rays must focus at one point on the retina.
lies in the same plane as the incident ray and normal at the point of
The primary goal of this experiment was to determine which types of glassware are the most accurate and precise in measuring substances. Another goal of this experiment was to help familiarize ourselves with the different types of glassware, and how we should handle the laboratory equipment. The accuracy and precision of a particular type of glassware is important because it allows for accurate measurements when performing different experiments. It also allows us to differentiate between glassware that is better for containing substances versus glassware that can deliver substances more accurately. In order to measure the accuracy and precision of the different types of glassware, we first chose seven different types of glassware. The general
Refraction occurs when light travels from one medium crosses a boundary and enters another medium of different properties. For example, light traveling from air to water. The amount of refraction (or bending) can be calculated using Snell's Law.
I will be talking about how images in a convex lens in a magnifying glass are affected by focal length. Concave lenses always produce virtual images because refracted rays do not intersecct. Images being reflected might change size depending on the material it is being reflected on. In some reflections it is common for an object to be reflected upside down because f the effect the material gives.
Understanding how our eyes work can be a really interesting thing. Many people don’t realize vision actually begins when light rays are reflected off an object that then enters the eye through the cornea. The cornea is a transparent bulge, in the front of our eyes that allows us to begin refraction. The cornea is one of the most important things in our eyes that allow us to see the things we do. After the reflected light rays enter the cornea, they then p...
The duality of how light behaves depends in which state light is being observed and how it interacts with an object 's surface. It is neither just a wave or a particle, they coexist and react to objects electrons and protons within their atoms. Animals, plants and our sky are examples of how light reacts and are seen.
The refractive index of lens is larger than air therefore refraction in lenses occurs differently. It happens when light moves parallel to the normal and is refracted through the focal point. If a ray passes through the optical center of the lens, the ray would continue without being refracted. The optical direction is the point on the normal where the incident direction of a ray is parallel to the emergent direction.
Now in order to understand how lights is able to be refracted in different angles, it is important to understand the Snell’s Law which states that, the refractive angle always depend on the refractive index of both media. Now, the refractive index keeps on changing depending on the wavelength of the light passing through. Light, as we know, it is a wave that has different wavelength. Each wavelength represents a different color. Thus, different colors will have different refractive index when passed through the same media. It is important to note that light is normally refracted twice when it travels through a prism, first on its way in, and when it is going back.
A refractometer is an optical device that takes advantage of the fact that light passing through a liquid bends or refracts. The refractometer is a tool. It is used to help you select higher quality of foods containing more vitamins and minerals. They are also used to determine the concentration of dissolved solids in a solution. Cooking oil, molasses, syrup, and other thick liquids require a refractometer calibrated to read 30-90 Brix. Refractometer also is used in wine making. (Harrill, 1998) refractometer is also used
A refractometer is an optical device that is used to measure the optical density or refractive index of a substance. Refractive index is a dimensionless number that describes how light, or any other radiation is bent as it moves through a medium. It is the ratio of light’s velocity in a vacuum (n=1) to its velocity in the sample. The greater the increase in optical density or refractive index, the greater the speed of light is reduced in a solid, gas or solution. A refractometer measures the refractive index of liquids, gases and translucent solids like gemstones. There are four main types of refractometers: traditional handheld refractometers, digital handheld refractometers, laboratory or Abbe refractometers, and inline process refractometers, (Wikipedia - Refractometers). Scientists often use refractometers to measure the refractive index when studying the physical properties of different solids and liquids. Bench and handheld refractometers are usually used for more practical purposes, for example to measure the concentration of a dissolved substance.
When a ray of light is bounced or reflected off of a plane surface, there is a specific law that can be used to predict the angle at which it is reflected off of the surface. This is known as the ‘Law of Reflection’ and it states:
The purpose of this experiment was to demonstrate and better understand thin lenses. The two types of thin lenses are concave where the lens curves in and convex when the lens curves out. There are three characteristics of thin lenses, which include; a chef ray, which goes through the center of the lens and does not deviate, the parallel ray that shines parallel to the lens and is refracted through the focal point on the opposite side, lastly there is the focal ray, which shines through the focal point that is on the same side of the lens as the object and at the middle of the lens is refracted parallel to the lens. At the point where two or more reflections of the rays meet is where the image is created. A real image is one that is
...smits the waves from one direction but as soon as it reflects it blocks them from the other. [1]