Two slits spaced $0\mathrm{.}450$ mmmm apart are placed a distance of $71\mathrm{.}0$ cmcm from a screen.

Part A

What is the distance between the second and third dark lines of the interference pattern on the screen when the slits are illuminated with coherent light with a wavelength of $480$ nmnm$?$

Express your answer in meters.

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mm