In a Young's double slit experiment, the path difference, at a cert...

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In a Young's double slit experiment, the path difference, at a certain point on the screen, between two interfering
P waves is \( 1 / 8^{\text {th }} \) of wavelength. The ratio of the intensity

W) at this point to that at the centre of a bright fringe is close to :
[JEE Main - 2019 (January)]
(1) \( 0.74 \)
(2) \( 0.85 \)
(3) \( 0.94 \)
(4) \( 0.80 \)
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