Single-Slit Diffraction Pattern Comparison · CAP 2008 #B2
Physics · optics
Problem
Single-slit diffraction is observed with an interference pattern on a screen behind a slit for a red light source. The red light source is then replaced by a violet light source of same intensity, without any changes to distances and the slit width. Use the "Intensity/Position" system of coordinates as on the Figure below, to sketch the interference pattern on the screen for the two sources of light. If you think that the patterns are identical, show just one pattern. If you think that the two sources produce different patterns on the screen, make it clear which pattern corresponds to a given colour.
[Figure: Graph with axes labeled "Intensity" vs "Position on the screen"]