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The source slit is moved closer to the double slit plane then what is effect on i terference fringes?
Asked by ashutosharnold1998 | 25 Aug, 2019, 01:42: AM
Expert Answer
The condition required for the interference pattern to be visible properly and distinctly is as follows-
Where,
s- source width
S- distance between the source and two slits
λ- wavelength of light
d-seperation between the two slits
If the source slit is moved towards or closer to the double slit plane then this condition is not satisfied. The value of S decreases and the interference fringes will overlap on one another. Due to this interference pattern will be less sharp and have low intensity.
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