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Fringe Width in YDSE

The fringe wi...

Question

The fringe width in a Young's double slit experiment can be increased if we decrease

A

width of slits

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B

separation of slits

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C

wavelength of light used

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D

distance between slits and screen

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Solution

The correct option is A width of slits
$β = λ \frac{D}{d}$

So by increasing d, that is width of slits, we can decrease fringe width.

Answer. A) width of slits.

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