Task 40027.
In the apparatus for observation of Newton´s rings was measured in the reflected light of the third dark ring radius (k = 3). When the space between the parallel plate and the lens is filled with liquid, the same radius of the ring was to have a number one greater. To determine the refractive index n of the liquid.
Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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