How do the focusing knobs help us as we use a microscope?
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Function of a Focus Knob of a Microscope:
The coarse focus knob is used to bring the specimen into approximate or near focus. Focus (fine), Use the fine focus knob to sharpen the focus quality of the image after it has been brought into focus with the coarse focus knob.
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Explanation:
How to calculate percentage difference with negative numbers
Determine the negative values you're using.
Calculate the difference between the two negative values.
Calculate the average of the negative values.
Divide by the average.
Convert to a percentage.
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