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May 77:44 AM
Reflection , Diffraction, and Refraction
Waves reflect at a "Free" boundary
At a "Fixed" boundary, waves reflect and turn upside down (inverted)
When a wave passes from one medium to another it ispartially transmitted and partially reflected
May 2 3:53 PM
http://www.launc.tased.edu.au/online/sciences/physics/diffrac.htm l
When a wave bends around an obstacle, or as it passes through an opening
Diffraction is the bending of a wave around an edge, or when it strikes an obstacle
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May 77:46 AM
Waves can also bend by refraction
When a wave strikes a boundary at an angle and its speed changes in the new medium it will refract
May 3 9:20 AM
Waves can also bend by refractionRefraction : "When a waves strikes a boundary between two mediums at an angle it is bent as it passes into the new medium"
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May 77:52 AM
InterferenceWaves in the same place combine to produce a single wave
http://www.phy.ntnu.edu.tw/ntnujava/viewtopic.php?t=34&sid=653764f2e28287f4736699cc8efd6719
Apr 29 9:33 AM
Principle of Superposition "When two waves exist at the same time in the
same space in a medium."
Constructive Interference two waves push in the same direction
Destructive Interference two waves push in opposite direction
The result of the interaction is called:
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May 710:30 AM
May 79:49 AM
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May 79:53 AM
May 79:53 AM
beats
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May 79:54 AM
http://www.ngsir.netfirms.com/englishhtm/TwaveStatA.htm