Diffraction Grating: a Thin Beam of Laser Light of Wavelength

Multiple Choice

Diffraction grating: A thin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 lines/cm. The resulting pattern is viewed on a distant curved screen that can show all bright fringes up to and including ±90.0° from the central spot. What is the TOTAL number of bright fringes that will show up on the screen?

A) 4
B) 5
C) 8
D) 9
E) 10