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Newton’s rings — UPSC CSE 2022 Physics PYQ
Buy PYQ Solution Manual →Newton's rings are observed between a spherical surface of radius of curvature 100 cm and a plane glass plate. The diameters of 4th and 15th bright rings are 0.314 cm and 0.574 cm, respectively. Calculate the diameters of 24th and 36th bright rings and also the wavelength of light used.
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