Upper Right
This is the orientation and general layout of the diffraction grating and the placement of those diffractions, we figured out that the spacing between the dots was attributed to the distances between the lines and estimated accordingly
2) Red- 1cm and 1.5cm on the respective diffraction gratings
Green - 1cm and 1.25cm on the respective diffraction gratings
160nm is the distance between the lines and 60 nm is the thickness of the lines
3)