I have quick questions about the diffraction of light?

How does the geometry of a pattern compare to the geometry of the slit. And when you switch from narrow to wide slit, how does the pattern change? Does complexity of pattern depend on number of slits?I have quick questions about the diffraction of light?Play with the on-line %26quot;applets%26quot; listed as sources below, and you should be able to answer these questions for yourself.