Light from a helium-neon laser 633 nm is utilized to, Ask an Expert

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Light from a helium-neon laser (= 633 nm) is utilized to illuminate two narrow slits. The interference pattern is observed on a screen 3.5m behind the slits. Eleven bright fringes are seen, spanning a distance of 50mm.

What is the spacing (in mm) among the slits?

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Reference No.:- M91220145

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