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Recent questions tagged telegram-1616

(chatquestion)...An equiconvex lens with radii of curvature of magnitude r each is put over a liquid layer poured on top of a plane mirror. A small needle with its tip on the principal axis of the lens is moved along the axis until its inverted real image coincides with the needle itself. The distance of needle from lens is measured to be 'a'. On removing the liquid layer and repeating the experiment the distance is found to be 'b'. glass Liquid Given that two values of distances measured represent the real length values in the two cases, obtain a formula for refractive index of the liquid. (C.B.S.E. Sample 2010)

asked Apr 9, 2020 by balaji.thirumalai

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