Solve the following question:
Question: A diffraction grating is made up of slits of width = 300 nm with separation = 1170 nm. The grating is illuminated by monchromatic plane waves of wavelength = 510 nm at normal incidence.
Question 1: How many maxima are there in the full diffraction pattern?
Question 2: What is the width of a spectral line observed in the first order if the grating has 600 slits.
I need expert help for the above question.