Coherent light of wavelength 540.4 nm is sent through two parallel slits in an opaque material. Each slit is 0.700 µm wide. Their centers are 2.80 µm apart. The light then falls on a semicylindrical screen, with its axis at the midline between the slits. We would like to describe the appearance of the pattern of light visible on the screen.
(a) Find the direction for each two-slit interference maximum on the screen as an angle away from the bisector of the line joining the slits. (Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.)
(b) How many angles are there that represent two-slit interference maxima?
(c) Find the direction for each single-slit interference minimum on the screen as an angle away from the bisector of the line joining the slits. (Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.)
(d) How many angles are there that represent single-slit interference minima?
(e) How many of the angles in part (c) are identical to those in part (a)?
(f) How many bright fringes are visible on the screen?
(g) If the intensity of the central fringe is Imax, what is the intensity of the last fringe visible on the screen?