Light of Wavelength 580 Nm Is Incident on a Slit

Multiple Choice

Light of wavelength 580 nm is incident on a slit of width 0.300 mm. An observing screen is placed 2.00 m from the slit. Find the position of the first order dark fringe from the center of the screen.

A) 0.26 mm
B) 1.5 mm
C) 1.9 mm
D) 3.9 mm
E) 7.7 mm