A single slit diffraction pattern is observed on a screen placed at a distance d behind a 375 μm narrow slit. The light used has a wavelength of 560 nm. The observed intensity pattern is shown in the figure below. Determine the distance d.

• A. 1.0 m
• B. 1.5 m
• C. 2.0 m
• D. 2.5 m

Answer: (C)