I'm not exactly sure how to get started on this one. Can anybody help me?...Please? Two different single slits are used in an experiment involving one source of monochromatic light. With slit 1 in place, the first dark fringe is observed at an angle of 45 degrees. With slit 2, the first dark fringe is observed at an angle of 55 degrees. a) Which slit is widest? Why? b) What is the ratio of the largest slit width to the smallest?