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The figure (a) shows a lens with radius of curvature 94 cm lying on a plate...

The figure (a) shows a lens with radius of curvature 94 cm lying on a plate glass plate and illuminated from above by light with wavelength ? = 600 nm. Figure (b) (a photograph taken from above the lens) shows that circular interference fringes (called Newton's rings) appear, associated with the variable thickness d of the air film between the lens and the plate. Find the radii r of the interference maxima assuming r/R is much less than 1. What is r for the first ring around the central spot? (m) What is r for the second ring around the central spot? (m)

The figure (a) shows a lens with radius of curvatu

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