A double-slit experiment is set up using a visible laser with f = 6.13 x 10^12 Hz. The slits are separated by a distance of 0.0390 mm and the screen is set up at a distance of 3.90 m from the slits. Find the expected location of the bright fringe of order 4 on the screen as measured from the center line.
Light of wavelength 692 nm falls on a single 0.340-mm-wide slit and forms a diffraction pattern on a screen 2.30 m away. Calculate the width (in mm) of the central maximum.