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YDSE Problems II

Double slit i...

Question

Double slit interference experiment is carried out with monochromatic light and interference fringes are observed. If now monochromatic light is replaced by white light ; what change is expected in interference pattern?

A

No change

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B

Pattern disappears

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C

White and dark fringes are observed throughout

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D

A few coloured fringes are observed on either side of central white fringe

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Solution

The correct option is D A few coloured fringes are observed on either side of central white fringe
Double slit interference experiment is carried out with monochromatic light and interference fringe are observed. If now monochromatic light is replaced by white light , then a few colored fringes are observed on either side of the central white fringe.
The correct option is D.

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