In Young's double-slit experiment, the fringe width is found to be 0 . 4 mm . If the whole apparatus is immersed in water of refractive index 4 3 , without disturbing the geometrical arrangement, the new fringe width will be

Question

In Young's double-slit experiment, the fringe width is found to be 0 . 4 mm . If the whole apparatus is immersed in water of refractive index 4 3 , without disturbing the geometrical arrangement, the new fringe width will be, 0 . 30 mm, 0 . 40 mm, 0 . 53 mm, 450 microns

MARKS App · Accepted Answer

β ′ = β μ = 0.4 (4/3) = 0.3 mm

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