Parallel light of wavelength l strikes a slit of width a at normal incidence. The light is viewed on a screen that is 1.0 m past the slits. In each case that follows, sketch the intensity on the screen as a function of x, the distance from the center of the screen, for 0 ≤ x ≤ 10 cm.
(a) l = 10 a.
(b) 10 λ = a.
(c) 30 λ = a.