If 550-Nm Light Is Incident Normally on a Diffraction Grating

Multiple Choice

If 550-nm light is incident normally on a diffraction grating and exactly 6 lines are produced, the ruling separation must be:

A) between 2.75*10^{- 6} m and 5.50 *0 ^{- 6} 1 m
B) between 5.50 *10sup>-⁶ m and 1.10 *10^-5 m
C) between 3.30 *10^-6 m and 3.85 *10^-6 m
D) between 3.85 *10^-6 m and 4.40 *10^-6 m
E) between 2.20 *10^-6 m and 3.30 *10^-6 m