Q 1212245130.     A slab of material of refractive index `2` has a curved surface `APB` of radius of curvature `10` cm and a plane surface `CD`. On the left of `APB` is air and on the right of `CD` is water with refractive indices as given in the figure. An object `O` is placed at a distance of `15` cm from the pole `P` as shown. The distance of the final image of `O` from `P`, as viewed from the left is ......

JEE 1991
A

`50` cm

B

`30 ` cm

C

`40` cm

D

`18` cm

HINT

`μ_2/v − μ_1/u =( μ_2−μ_1)/R`

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