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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 17 - Refraction of Light by Plane Surfaces > A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again

A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again

A vessel of depth d is half filled with a liquid of refractive index μ1 and the other half is filled with a liquid of refractive index μ2. The apparent depth of the vessel is when looked at normally