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Standard XII
Physics
Fringe Width in YDSE
In a certain ...
Question

In a certain double slit experimental arrangement interference fringes of width 1.0 mm each are observed when light of wavelength 5000 Å is used. Keeping the set up unaltered, if the source is replaced by another source of wavelength 6000 Å, the fringe width will be

[CPMT 1988]


A

0.5 mm

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B

1.0 mm

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C

1.2 mm

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D

1.5 mm

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Solution

The correct option is C

1.2 mm



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In a certain double slit experimental arrangement interference fringes of width 1.0 mm each are observed when light of wavelength 5000 Å is used. Keeping the set up unaltered, if the source is replaced by another source of wavelength 6000 Å, the fringe width will be

[CPMT 1988]


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