A microscope is focused on a mark on a table, when the mark is covered by a plate of glass 2m thick, the microscope has to be raised 0.67cm for the mark to be once more in focus. Calculate the refractive index.

by Sunday | Jan 4 | Physics WAEC | 0 comments

A. 1.52
B. 1.68
C. 2.58
D. 1.82

Correct Answer: Option A

A. 1.52

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