Light
Light is a kind of electromagnetic radiation. It is made up of vibrations between a certain group of frequencies. When light is given off from a source it spreads out over a larger area. Scientists are still dumbfounded by exactly what light is. When light hits a smooth or polished surface it "bounces" off at the same angle that it hit. Reflecting telescopes are made of concave mirrors and they have helped astronomers chart the universe because the mirrors interact with each other to magnify what is being observed. Refraction is when light bends as it goes through glass, water and other transparent objects that are denser than air. A prism is an instrument that spreads out a ray of light into the color spectrum. A lens is another instrument that uses the light refraction, but lenses are put to more practical uses (I'm not saying that a mirror isn't practical enough.). ______________________________________________________________________Welcome to the wonderful world of light, including the refraction and reflection of light. Refraction is the bending of light when it travels through a denser, or thicker material, such as water. Reflection is a bit different though; when light hits a smooth or polishe
There are many other kinds of lenses, but these are the two basic ones. Lenses are pieces of glass that are made curved in or curved out so that the refracted rays are put to use and are focused. The quantum theory says that in some ways light acts as a series of particles and in other ways acts as a wave. Lenses that are curved in are called concave lenses (Fig. Reflection As discussed at the beginning: when light hits a flat, smooth/polished surface it "bounces" back at the same angle that it hit. The angle of reflection is the angle between the reflected ray and the normal, just like the angle of incidence. The angle that the light is reflected is the angle of reflection. As a result the quantum theory came into being. When light is emitted, or given off, from a source such as the sun, it moves in straight lines, and starts to filter out into a broader area as it travels farther. The Dutch mathematician, astronomer, and physicist, Christiaan Huygens countered Newton with the wave theory. He figured he could prove Newton wrong because if photons were drawn towards water and other dense materials, its velocity would become greater because the force of being pulled would speed it up. When light passes through a prism the incident ray is refracted, but in a special way.
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Acceptance Essays
