Answer:
The first objective lens that someone should first use to view a slide is the 4x magnification objective lens.
Step-by-step explanation:
- This is because the 4x magnification objective lens has got the lowest magnification power.
- This in turn means that it has the highest field of view.
- This in turn makes it easier to locate the specimen first before switching to lenses with higher magnification power for focus after finding the location of the specimen.