Question
135.A liquid of refractive index 4/3 is placed between two identical planoconvex-lenses tuching each other at their spherical surface of radius 1/R . If refractive index 0f lens is 1.50, then the lens behave as 1) Convergent with power P = 1/3R 2) Convergent with power P = 1/6R 3) Divergent with power P = 1/3R 4) Divergent with power P = 1/6R