A few days ago
Anonymous

question about compound microscopes?

WHy must a compound microscope should never be racked down with the couse adjustment knob on high power? It may be used with the fine adjustment knob, but how come not on the course adjustment knob??.

Top 1 Answers
A few days ago
LouLou

Favorite Answer

You never want to use the coarse adjustment on high power, because you could potentially hit the lense with the stand or slide and scratch/damage the very expensive lense. Using only the fine adjustment knob usually prevents such damage.
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