Light of wavelength falls on a 0.427-mm-wide slit and forms a diffraction pattern on a screen 1.46 m away. (a) Find the angle θ for the direction at which the first dark band on either side of the central maximum occurs. rad(±2E−5rad) (b) Find the distance on the screen from the central maximum to the first dark band on either side of it. Use the small-angle approximation for both parts of this problem. mm(±0.02 mm) Source: Serway and Faughn, College Physic, 5th edition, Problem 24.27