Determine light or dark ring Newton reflected light has a radius of 5.3 mm, if it is obtained by illumination with a lens having a radius of curvature of 18 m with light of wavelength 450 nm. Light normally incident to the flat surface of the lens. What is the radius of the same ring, if the gap between the lens and the plate on which the lens is to introduce alcohol (refractive index n = 1,36).

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.

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