A microscope is focussed 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?.
Text Solution
Verified by ExpertsThe correct answer is:
B
: Apparentdepth 
As image appears to be raised by 1 cm, therefore, microscope must be moved upwards by 1 cm.
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