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A concave-convex lens is placed on a hor...

A concave-convex lens is placed on a horizontal table with its convex surface polished to make it reflecting as shown in figure. If radii of curvature of its two surfaces are 30 cm and 60 cm respectively find the position on its principal axis where a point object should be placed to obtain its image on itself. `(mu_("lens") = (3)/(2))`

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