In a Young's double-slit interference experiment,a monochromatic beam of light is used to form fringes on a screen. When a thin mica sheet is placed in the path of one of the interfering beams,then...
- AThe fringe width increases.
- BThe fringe width decreases.
- CThe fringe width remains unchanged,but the fringes shift.
- DThe fringe pattern disappears.
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