The student passes 633 nm laser light through a narrow slit and observes the diffraction pattern on a screen 7. 00 m away. The distance on the screen between the centers of the first minima on either side of the bright central fringe is 35.0 mm. (a) How wide is the slit? (b) The intensity at the center of the pattern is 0. What is the intensity at a point on the screen 3.80 mm from the center of the pattern?