Consider an Experiment Using a Diffraction Grating with 7000 Lines/cm $440 - n m$

Short Answer

Consider an experiment using a diffraction grating with 7000 lines/cm, a screen 2.50 m away, and a $440 - n m$ wavelength beam of light.
(a) How many side maxima will be observed on one side of the central maximum?
(b) How far apart on the screen are the first-order and second-order maxima on the same side of the central maximum?