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QAIPMT-2006-Ph-2446: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2446 Solution: A microscope is focussed on a mark on a piece of paper and then …
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?
Multiple Choice Options
- A 2 cm upward
- B 1 cm upward
- C 4.5 cm downward
- D 1 cm downward
Step-by-Step Verified Solution
Apparent depth = r e a l d e p t h _ = 3 1.5 = 2 cm
As image appears to be raised by 1 cm, therefore, microscope must be moved upwards by 1 cm.