Diffraction

D Part A In our experiment, our main colour is green, but we also used red and blue lasers. Our diffraction grating had 300 lines per millimetre, therefore d=3330 nm. Green laser Order of fringe n Left angle l (°) 0 10 20.5 31.5 45 59 87 Right angle r (°) Uncertainty in the angle (°) 1 1.5 1 1 1 1.5 3 0 0 1 -10.5 2 -20 3 -30 4 -40.5 5 -55 6 -72.5 Wave length stated on laser: 533.2 nm Red laser Order of fringe n 0 1 2 3 4 5 Wave length stated on