1. The problem statement, all variables and given/known data See attached image 2. Relevant equations single wavelength mλ=dsin(θ) diffraction grating: d*(sinθi+sinθm)=mλ y/L = sinθ 3. The attempt at a solution red = 656 nm blue = 486 nm L = 1.7 m I really do not know what to do. I tried 656-486 = 170 nm so y/L = sinθ 0.000017 cm/ 170 cm = sinθ θ=5.73x10^-6 and that does not yield a correct answer. Please help! Thanks in advance.