A Beam of Light of Wavelength 600 Nm Passes Through

Multiple Choice

A beam of light of wavelength 600 nm passes through a slit that is 3.1 × 10^-5 m wide,and then goes on to a screen that is 2.2 m from the slit.On the screen,how far is the second dark fringe from the center of the diffraction pattern?

A) 3.9 cm
B) 4.2 cm
C) 6.3 cm
D) 2.1 cm
E) 8.5 cm