A layer of oil 3 cm thick is floating on a layer of coloured

Last updated: 6/25/2023

A layer of oil 3 cm thick is floating on a layer of coloured 5 water 5 cm thick Refractive index of coloured water is 3 36 and apparent depth of two liquids appears to be 7 What is refractive index of oil O 1 2 O 1 3 O 1 4 1 52 cm