Question

this is geometrical optic question
A real object is in water 133cm from -3D water-plastic interface. The refractive indices of the water and
plastic are 1.33 and 1.44, respectively. The plastic is 14.44 cm thick and followed by a 4.02 cm thick
slab of ice (n=1.34). The ice is followed by 13.5 cm of glass (=1.5). The back surface of glass is a +10D
glass-air interface. The plastic-ice and ice-glass interfaces are plane surfaces. Where is the final image
and What is the lateral magnification? Find the neutralizing and back vertex powers of a system