What is Reflection: Definition and 953 Discussions
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection.
In acoustics, reflection causes echoes and is used in sonar. In geology, it is important in the study of seismic waves. Reflection is observed with surface waves in bodies of water. Reflection is observed with many types of electromagnetic wave, besides visible light. Reflection of VHF and higher frequencies is important for radio transmission and for radar. Even hard X-rays and gamma rays can be reflected at shallow angles with special "grazing" mirrors.
Let's say a sound wave is propagating through air. At some point it hits a rock wall, some of the wave continues on through the wall and some reflects back.
What factors determine how much reflects back and how much is absorbed?
I tried to work out the transmission coefficient and
the reflection coefficient for a case similar to the
one referred by this website:
http://www.chembio.uoguelph.ca/educmat/chm386/rudiment/models/barrier/barsola.htm
but instead this time, I reverse the situation and
now, that particle...
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