Hi everyone. I'd like you to help me make sense of a question I found about the Michelson Morley experiment. This is it: "Explain how and why the uncollimated light rays form interference fringes? Can you say what would happen if the rays were collimated?" Does this question even make sense? How would you answer in that case? I study math, not physics, so I tried to read a description of the experiment but this question doesn't quite add up with what I read. Thanks in advance.