In a two-slit experiment, monochromatic coherent light of wavelength 600 nm passes through a pair of slits separated by 2. 20 × 10-5 m. At what angle away from the centerline does the second dark fringe occur?.

Which source would provide the most bias-free information about smoking and increased health risks? a) a website created by heart disease patients b) a research study conducted by the mayo clinic eliminate c) a public service message sponsored by tobacco companies d) an online question forum conducted by attorneys for cardiac specialists