Answer:
While observing sample in a microscope sometime sample does not appear clear so there is a need to focus and adjust the slide. To make this adjustment one has to perform the following task:
1. Place the sample into focus by adjusting the focus knob.
2. Readjust the condenser and light intensity according to the objective lens.
3. Adjust the objective lens to get a clear image
These are the steps one has to follow.
