A Beam of Light of Wavelength $610 \mathrm {~nm}$ Passes Through a Slit That Is

Multiple Choice

A beam of light of wavelength $610 \mathrm {~nm}$ passes through a slit that is $1.90 \mu \mathrm { m }$ wide. At what the angle away from the centerline does the first dark fringe occur?

A) $18.7 ^ { \circ }$
B) $9.35 ^ { \circ }$
C) $11.4 ^ { \circ }$
D) $39.9 ^ { \circ }$
E) $12.2 ^ { \circ }$