Consider a diffraction grating with a grating constant of 500 lines/mm. The grating is illuminated with a composite light source consisting of two distinct wavelengths of light being 651 nm and 509 nm. if a screen is placed a distance 1.35 m away, what is the linear separation between the 1st order maxima of the 2 wavelengths? Express this distance in meters.

Assume that all quantities are good to 3 significant figures...do not start rounding off too early or too much! All numeric answers should be entered rounded to 3 significant figures and assuming proper SI Units unless otherwise stated.