A Multiple-Slit Diffraction Grating Has a Slit Separation of 1

Multiple Choice

A multiple-slit diffraction grating has a slit separation of 1.75 × 10−⁶ m.Find the wavelength of the monochromatic light that will have its second-order bright fringe diffracted through an angle of 36.0°.(1 nm = 10−⁹ m)

A) 389 nm
B) 868 nm
C) 514 nm
D) 343 nm
E) 257 nm