In a Young's double-slit experiment, a set of parallel slits with a separation of 0.150 millimeter is illuminated by light having a wavelength of 584 nanometer and the interference pattern observed on a screen 3.50 meter from the slits.
(a) Find the difference in path lengths from the two slits to the location of a third order bright fringe on the screen?
µm
(b) Obtain the difference in path lengths from the two slits to the location of the third dark fringe on the screen, away from the center of the pattern?
µm