In a Young's double-slit experiment, the wavelength of the light used is 550 nm (in vacuum), and the separation between the slits is 1.40 x 10-6 m. Determine the angle that locates each of the following. (a) the dark fringe for which m = 0
(b) the bright fringe for which m = 1
(c) the dark fringe for which m = 1
(d) the bright fringe for which m = 2