A Two-Slit Arrangement With $60.3 \mu \mathrm { m }$ Separation Between the Slits Is Illuminated With

Multiple Choice

A two-slit arrangement with $60.3 \mu \mathrm { m }$ separation between the slits is illuminated with $491.0 \mathrm {~nm}$ coherent light. If a viewing screen is located $2.14 \mathrm {~m}$ 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) $34.9 \mathrm {~mm}$
B) $69.7 \mathrm {~mm}$
C) $24.6 \mathrm {~mm}$
D) $52.3 \mathrm {~mm}$