Question

Consider sunlight incident on a slit of width 10⁴ A. The image seen through the slit shall

Options:
(a) be a fine sharp slit white in colour at the center.
(b) a bright slit white at the center diffusing to zero intensities at the edges.
(c) a bright slit white at the center diffusing to regions of different colours.
(d) only be a diffused slit white in colour.