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In a YDSE setup sodium light of waveleng...

In a YDSE setup sodium light of wavelength `5893 Å` is being used. The interference pattern is obtained on a screen which is located at a distance 1 m from the slit plane. In the interference pattern it is observed that `10^(th)` bright fringe is located at a distance of 12mm from the central maximum. Find the slit separation.

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