Monochromatic light is incident on a sheet that has four
Chapter , Problem 53(choose chapter or problem)
Monochromatic light is incident on a sheet that has four long narrow parallel equally spaced slits a distance apart. (a) Show that the positions of the interference minima on a screen a large distance away from the sheet that has the four equally spaced slits (spacing with are given approximately by where that is, is not a multiple of 4. (b) For a screen distance of a light wavelength of and a source spacing of calculate the width of the principal interference maxima (the distance between successive minima) for four sources. Compare the width with that for two sources with the same spacing.
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