A microscope is focused on an ink mark on the top of a table. If we place a glass slab thick on it, how should the microscope be moved to focus on the ink spot again? The refractive index of the glass slab is .
Step 1. Given data:
Thickness of glass slab =
Refractive index of the glass slab =
Step 2. Formula used:
Refractive index =
Step 3. Calculations:
Thus, the microscope should be moved in an upwards direction.