Figure (a) shows a lens with radius of curvature R = 280 mm lying on a flat glass plate and illuminated from above by light with wavelength A. 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 radius r of the interference maxima (m = 3, = 508 nm) assuming r/R << 1. Incident light R Glass Air Glass (a)

Figure (a) shows a lens with radius of curvature R = 280 mm lying on a flat glass plate and illuminated from above by light with wavelength A. 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 radius r of the interference maxima (m = 3, = 508 nm) assuming r/R << 1. Incident light R Glass Air Glass (a)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter36: Applications Of The Wave Model

Section: Chapter Questions

Problem 50PQ: Optical flats are flat pieces of glass used to determine the flatness of other optical components....

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