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Problem
Two very narrow slits are spaced 1.80
μ
m
\mu\text{m}
μ
m
apart and are placed 35.0 cm from a screen. What is the distance between the first and second dark lines of the interference pattern when the slits are illuminated with coherent light of
λ
=
550
nm
\lambda = 550 \text{ nm}
λ
=
550
nm
?
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