Figure (a) below shows a lens with radius of curvature R = 255 mm lying on a flat glass plate and illuminated from above by light with wavelength A = 807 nm. Figure (b) below (a photograph taken from above the lens) shows that circular interference fringes (called MNewton's rings) appear, associated with the variable thickness d of the air film between the lens and the plate. (a) Find the difference in radius between adjacent bright rings (maxima) Ar = rs57 - 55 and (b) the area between this adjacent bright rings. Assume that AR