1. The problem statement, all variables and given/known data A diffraction grating of 3900 slits per centimeter is used to analyze the spectrum of mercury. (a) Find the angular separation in the first-order spectrum of the two lines of wavelength 579 nm and 577 nm. (b) How wide must the beam on the grating be for these lines to be resolved? 2. Relevant equations dsin(theta)=m*lumda 3. The attempt at a solution what is the angular separation? Is it just Theta?