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The two parallel slits used for Young's ...

The two parallel slits used for Young's interference experiment are `0.5` mm apart . The screen on which fringes are projected is `1.5` m from the slits . How far is the third dark fringe from the central bright one ? Wavelength of light used is 6000 Å.

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The correct Answer is:
`0.45` cm
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SL ARORA-WAVE OPTICS-Based on Young s Double Slit experiment
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