Question
3 As shown in figure below, a liquid of refractive indexn, is poured into the concave surface of a concavo-convex lens. R1and R2are the radii of curvature ofconvex and concave surfaces of lens respectivelyand R1= 2R2, The refractive index of material of lensis n,. For which combination of n1 and n2 the wholesystem behave as a diverging lens