If the monochromatic source in Young's double slit experime…

Biology NEET Previous Year Question Paper NEET 2024 Previous Year Question Paper - I Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 11, 2026

If the monochromatic source in Young's double slit experiment is replaced by white light, then

there will be a central bright white fringe surrounded by a few coloured fringes.

all bright fringes will be of equal width.

interference pattern will disappear.

there will be a central dear fringe surrounded by a few coloured fringes.

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When we use white light in place of monochromatic light, the central fringe appears white, while the other fringes display different colours. This is because the central fringe for all colours is formed at central point, so it appears white after mixing up. As fringes of other colours fall at different positions, we see fringes of all colours on either side of the central bright fringe.

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