ifos • paper_1 • waves_oscillationsifos-2013-subject-02-004
Refraction of light — UPSC IFoS 2013 Physics PYQ
Buy PYQ Solution Manual →A plano-convex lens of radius 1\cdot 0\text{ m} is placed on an optically flat glass plate. The space between the lens and the glass plate is filled with a liquid. The diameter of the 5^{\text{th}} ring changes to 3\cdot 0 \times 10^{-3}\text{ m}. Calculate the refractive index of the liquid when the ring is bright. The wavelength of light used is 589\text{ nm}.
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