Question

A mark at the bottom of beaker is focused by a microscope.on pouring water upto a height of 16cm,the microscope is raised through 4 cm to focus the mark again.refractive index of water is?

Answer 1

real depth is 16
apparent depth is 16-4=12
refractive index of water/ri of air=real depth/apparent depth

Answer 2

Answer: 4/3

Explanation: i hope it will help you