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Newton's Ring Experiment a. Newton's rings are formed with reflected light of wavelength 5890x 10-10 m...

Newton's Ring Experiment

a. Newton's rings are formed with reflected light of wavelength 5890x 10-10 m using a plano-convex lens and a plane glass plate with liquid between them. The diameter of the third bright ring is 2 mm. If the radius of curvature of the curved surface of the lens is 90 cm find the refractive index of the liquid.

b. The diameter of the tenth dark ring in a Newton's ring system viewed normally by reflected light of wavelength 5.9x 105 cm is 0.5 cm. Calculate the thickness of air film and the radius of curvature of the lens.

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- solution: (a) Wanelength of light, a=589 08 1010m. The diameter of theird, beright way, Dz amm. Radirs es curvature , R = 9But think you have written wavelength incorrectly it has to be 5.9x10-5 con = 5.9x10-7 m if this is &t then below are the cor

I hope it will help you if still having any query related to it then feel free to comment. Plzz rate if u like the answer. Thank you. ?.

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