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18-10-2020
Biology

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When observing a specimen under medium power, which adjustment knob should be used to focus the image? Why?

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18-10-2020

Answer:

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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