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In Young's double slit experiment if mon...

In Young's double slit experiment if monochromatic light is replaced by white light

A

all bright fringes become white

B

all bright fringes have coloures between violet and red

C

only the central fringe is white all other fringes are coloured

D

no fringes are observed.

Text Solution

Verified by Experts

The correct Answer is:
C
Central fringe is that fringe where the path difference `Deltax=0` for all wavelengths so the central fringe is white followed by the some coloured fringes and after that there is very much overlapping in fringes so equal illumination exists.
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Knowledge Check

  • If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue value of light of the same intensity then....

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    A
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