In a Young's double slit experiment, the source is white light. One of the slits is covered by red filter…

In a Young's double slit experiment, the source is white light. One of the slits is covered by red filter and another by a green filter. In this case
  1. There shall be an interference pattern for red distinct from that for green.
  2. There shall be no interference fringes.
  3. There shall be alternate interference fringes of red and green.
  4. There shall be an interference pattern, where each fringe's pattern center is green and outer edges is red.

Solution

Different colours will have different fringe width. Within a few fringes of red, there will be several fringes of violet.
Also, there will be overlapping of colours.

Asked in: JEE Main 2025 (08 Apr Shift 2)

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