Light of Wavelength 550 Nm Is Incident on a Diffraction

Multiple Choice

Light of wavelength 550 nm is incident on a diffraction grating that is 1 cm wide and has 1000 slits.What is the dispersion of the m = 2 line?

A) 2.0 x 10⁵ rad/m
B) 2.0 x 10⁴ rad/m
C) 2.0 x 10³ rad/m
D) 2.0 x 10² rad/m
E) 2.0 x 10¹ rad/m