In a Young's double-slit experiment, two parallel slits with aslit separation of 0.135 mm are illuminated by light of wavelength579 nm, and the interference pattern is observed on a screenlocated 4.15 m from the slits.
(a) What is the difference in path lengths from each of theslits to the location of the center of a fifth-order bright fringeon the screen?
µm
(b) What is the difference in path lengths from the two slits tothe location of the center of the fifth dark fringe away from thecenter of the pattern?
µm
