Explore BrainMass

Fringe pattern from interference, waves of different lengths

Fringe Patterns. See attached file for full problem description.


Solution Preview

The solution is in the attached file 70476.pdf

There is some kind of a confusion in that there is only one $theta$ in the picture, but you mention $theta_1$ and $theta_2$ further down in the text.
I shall assume that what is meant in the text is that $theta_1= theta$ and

On how to find a period:

Suppose we have a function of x ...