The left end of a long glass rod 8.00 \rm cm in diameter, with an index of refraction 1.60, isground to a concave hemispherical surface with radius 4.00\rm cm. The glass rod is immersed in a liquid. An object14.5 cm from the vertex of the left end of the rod and on itsaxis is imaged at a point 9.50 cm from the vertex inside the liquid.
What is the index of refraction of the liquid?