The diffraction grating 20.0 mm wide consists of 4800 rulings. The Light of wavelength 585 nm is incident perpendicularly on the grating.
i) Determine the biggest value of at which a maximum appears on a distant viewing screen?
ii) Determine the second largest value of at which a maximum appears on the distant viewing screen?
iii) Determine the third largest value at which a maximum appears on the distant viewing screen?