Light of a single wavelength is incident normally on a diffraction grating. The resulting diffraction pattern is displayed on a screen. Which change makes the first orders of intensity maxima further apart from each other on the screen?
placing the screen closer to the diffraction grating
using a diffraction grating with less separation between adjacent slits
using a diffraction grating with more slits but keeping the same separation between adjacent slits
using light with a shorter wavelength