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AP EAMCET Engineering 22 Sep 2020 Shift 1 Paper

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Question : 95

Total: 160

A travelling microscope is focused on an ink dot marked on a piece of paper. When a glass slab (µ=1.5) of thickness 0.12 m is placed on the ink dot. The travelling microscope has to be moved__________ in order to restore the focus.

0.04 m downwards
0.04 m upwards
0.06 m downwards
0.06 m upwards

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