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Question:
I am working on a project in one of my classes... We are attempting to demonstrate how construction/destruction works with waves. We will demonstrate this on the computer using fortran. We have a basic concept but need some information on how to demonstrate what will happen when the wave hits an object. I am aware that refraction follows snells law, but what does diffraction follow? Is there a law that determines which way the wave will go when it is diffracted?



Replies:
Hold your fingers together and look at a bright region (like a light or the outdoors) through the tiny crack between 2 fingers where they join the hand. You will see some vertical dark lines, like fine hairs. These are diffraction minima, caused by interference of light waves that arrive along different paths.

Jack L. Uretsky



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