At central point on screen, path difference is zero for all wavelength. So, central bright fringe is white and other fringes depend on wavelength as β=dλD. Therefore, other fringes will be coloured.
If the monochromatic source in Young's double slit experiment is replaced by white light, then
NEET UG 2024 — Physics Optics
2024mcqeasy
If the monochromatic source in Young's double slit experiment is replaced by white light, then
Official previous-year question
Held on 30 Apr 2024 · Verified 9 Jul 2026.
Options
- A
There will be a central dark fringe surrounded by a few coloured fringes
- B
There will be a central bright white fringe surrounded by a few coloured fringes
- C
All bright fringes will be of equal width
- D
Interference pattern will disappear
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