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[" 31.A transparent paper (refractive in...

[" 31.A transparent paper (refractive index "=1.45" ) of "],[" thickness "0.02mm" is pasted on one of the slits of "],[" a Young's double slit experiment which uses "],[" monochromatic light of wavelength "620nm" .How "],[" many fringes will cross through the centre if the "],[" many is nomould "]

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