An 18-Mm-Wide Diffraction Grating Has Rulings of 710 Lines Per

question 79

Multiple Choice

An 18-mm-wide diffraction grating has rulings of 710 lines per millimieter. Monochromatic light of wavelength 506 nm wavelength is incident normally on the grating. What is the largest angle from the centerline at which an intensity maximum is formed?

• A) 46°
• B) 44°
• C) 42°
• D) 40°
• E) 38°