Physics - Geometrical Optics Question with Solution | TestHub

Bottom of a glass beaker is made of a thin equi-convex lens having bottom side silver polished as shown in the figure. Water is filled in the beaker upto a height of $\mathrm{h}=4\mathrm{m}$. The image of point object, floating at middle point of beaker at the surface of water coincides with it. Find out the radius of curvature of the lens in $\mathrm{m}.({}_{\mathrm{a}}{\mu }_{\mathrm{g}}$ $=3/2,{}_{\mathrm{a}}{\mu }_{\mathrm{w}}=4/3$ )