A Single Slit That Is 2100 Nm Wide Forms a Diffraction

question 19

Multiple Choice

A single slit that is 2100 nm wide forms a diffraction pattern when illuminated by monochromatic light of 680-nm wavelength. At an angle of 10° from the central maximum, what is the ratio of the intensity to the intensity of the central maximum?

• A) I/I₀ = 0.35
• B) I/I₀ = 0.39
• C) I/I₀ = 0.43
• D) I/I₀ = 0.47
• E) I/I₀ = 0.51