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|Published on: Jan 4|Categories: Physics WAEC| 0 comments A. 1.52 B. 1.68 C. 2.58 D. 1.82 Correct Answer: Option A A. 1.52 Users Also Read These:A travelling microscope is focused on a mark on a…A ray of light travelling from glass into ethyl…The refractive index of a material is 1.5. Calculate…A ray of light is incident at an angle of 30°on a…If the linear magnification of the objective and…SEE ALSO The diagram below represents the displacement-time graph of the motion of an object thrown upwards. The velocity of the object at point P is?