Class Response: Rarefraction and Reflection

In class, we have just learned about rarefaction and reflection. But what do these two terms really mean? Well, rarefaction is a decrease in density in a region of a medium. For instance, light. Reflection is like a mirror image that you see from a clear glass, or spectrum of some sort. For example, you see something that appears to be, but isn't. Also, when light is bended through an clear glass or object, that white light is bent into colors of the rainbow. Those colors are called R.O.Y.G.B.I.V, representing red, orange, yellow, green, blue, indigo, and violet. Violet is seen more than the others, since it was bent the most. While red was bent the least. Reflection is part of our daily lives everyday. The mirrors reflect light so that we could see ourselves in the clear glass. Also, some people have glasses that help them see better if they are either far-sighted or near-sighted. The concave lense help far-sighted people. And convex lenses help near-sighted people see better. As you now see, rarefaction and reflection happens everyday in our lives.