Trial Direct Image θo CW θo CCW 176.5°13’ 356.5°13’ 1 Order 1 2 Rtheo (in m) 1.096776x107 1.096776x107 Order 1 2 Color Line θ CW θ CCW 168.5°3’ 5°3’ Rexp (in m) 9.7478x106 9.5023x106 % error 11.12% 13.36% Theoretical Ground State Energy (in eV) 13.6 13.6 Δθ CW Δθ CCW Abs Diff 8°10’ 8°20’ 10’ n2, theo 2 2 Experimental Ground State Energy (in eV) 12.1 11.8 n2, exp 1.91 1.90 % error 4.5% 5% % error 11.0% 13.2%