Diffraction Grating: Monochromatic Light of Wavelength 500 Nm Is Incident

Multiple Choice

Diffraction grating: Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating. If the third-order maximum of the diffraction pattern is observed at 32.0° from the central spot, how many TOTAL number of maxima can be seen?

A) 5
B) 7
C) 10
D) 11
E) 13