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What will be the solution of the following?

Newton's Rings are observed normally in reflected light of wavelength 5.9*10^-5cm.The diameter of the 10th dark ring is 0.5cm.Find the radius of curvature of the lens and the thickness of the film.

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  • 1 decade ago
    Favorite Answer

    Rn = sqrt[(N-½)λR]

    Rn = 0.005 m

    λ = 5.9 x 10^-7 m

    R = 4.46 m is the radius of curvature of the lens

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