A) Determine the angular position (angle) of the first-order
line (maxima) for light of wavelength 596 nm incident on a grating
with 2.31 x 10-6 m spacing.
B) Determine the angular position (angle) of the second-order
line (maxima) for light of wavelength 416 nm incident on a grating
with 1.16 x 10-6 m spacing.