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Two slits 0,125 mm apart are illuminated...

Two slits `0,125 mm` apart are illuminated by light of wavelength `4500 Å`. The screen is `1m` away, from the plane of the slits. Find the separation between the 2nd bright fringe on both sides of the central maximum.

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SL ARORA-WAVE OPTICS-Based on Intensity Distribution in interference pattern
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