Double-Slit Interference: A two-slit arrangement with 60.3 ?m separation between the slits is illuminated with 491.0 nm coherent light. If a viewing screen is located 2.14 m from the slits, find the distance from the first dark fringe on one side of the central maximum to the second dark fringe on the other side.
A. 52.3 mm
B. 34.9 mm
C. 69.7 mm
D. 24.6 mm
Answer: B
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