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A symmetric biconvex lens of radius …

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A symmetric biconvex lens of radius of curvature R and made of glass of refractive index 1.5 is placed on a layer of liquid placed on top of a plane mirror add shown in the figure. An optical needle with its tip on the principal axis until it's real, inverted image coincides with the needle itself. The distance of the needle from the lens is measured to be x. On removing the liquid l layer and repeating the experiment, the distance of found to be y. Obtain the expression for the refractive index of the liquid in terms of x and y.

Posted by Nisha Walia 6 years, 10 months ago

CBSE > Class 12 > Physics

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