試題詳解

53. Light of wavelength 500 nm is incident upon a single slit with width 2 × 10⁻⁴ m. The diffraction pattern is observed on a screen positioned 4 m from the slit. Determine the distance of the second dark fringe from the central peak.
(A) 0.01 m
(B) 0.02 m
(C) 0.03 m
(D) 0.04 m
(E) 0.05 m