What power lens objective is used with a special oil that is placed directly on the slide?
A) 4*
B) 10*
C) 40 or 45*
D) 100*

Question

Quizplus · Accepted Answer

The longest objective, oil immersion (100*), allows the finest focusing of the object and requires the use of a special oil that is placed directly on the slide. This special oil, called immersion oil, prevents refraction of the light and improves the resolution (clarity) of the magnified image. Oil immersion is used to view cells and extremely small materials (e.g., bacteria and platelets) and to examine stained specimens.

What Power Lens Objective Is Used with a Special Oil