Arrange the following steps of applying immersion oil in the…
Arrange the following steps of applying immersion oil in the correct sequence. 1. Apply a drop of immersion oil directly onto the area of the slide you were viewing. 2. Rotate the 100x lens over the microscope slide, and use the fine focus adjustment knob to sharpen the image. 3. Turn the objectives to halfway between the 40x lens and the 100x lens. 4. Focus on the specimen using the 40x objective lens.