Part I. Optics
Part I. Optics
Light with l = 500 nm is incident on two narrow slits separated by d = 30 mm. An interference pattern is observed on a screen a distance L away from the slits. The first dark fringe is found to be 1.5 cm from the central maximum.
Calculate the distance, L, to the screen. Show all work.
Model solution:
sinq is almost equal to tanq since q is small so
therefore