Installation for Newton's Rings illuminated by monochromatic light incident normal to the surface of the plate. Monitoring is carried out in the reflected light. The radii of the two adjacent dark rings are rk = 4,0 mm and r (k + 1) = 4.38 mm. The radius of curvature of the lens R = 6,4 m. Find the sequence numbers of rings and the wavelength of incident light.

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
If you have any questions to address, please. I'll try to help.