Question

Two thin parallel slits are a distance d apart. Monochromatic light passing through them produces a...

Two thin parallel slits are a distance d apart. Monochromatic light passing through them produces a series of interference bright spots on a distant screen.

PART A

If you increase the distance between these slits, the bright spots will... move closer to the center spot or not change position?

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Answer #1

fringe width = order * wavelength * distance of screen / slit width

if the distance between slit is increased the fringe width will decreased they are inversely proportional

so,

the bright spots will move closer to the center spot

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