Question

When do you use the fine adjustment knob?​

Answer 1

Answer:

Coarse and fine adjustment The coarse adjustment knob should only be used with the lowest power objective lens. Once it is in focus, you will only need to use the fine focus. Using the coarse focus with higher lenses may result in crashing the lens into the slide.

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Answer 2

Answer:

We used the fine adjustment knob to see clearly the substance which we see on microscope .