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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2006
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Q)

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 ) 1 cm upward
( B ) 4.5 cm downward
( C ) 2 cm upward
( D ) 1 cm downward

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