Answer : If this happens avoid using the high power objective lens, instead use other power lenses.
One should always use the compound microscope with great care. If the high power objective lens breaks the cover slip, it should be immediately informed to the teacher, professor, or any one who is authorized to handle this situation.
You can avoid this situation to occur by being extra careful, while using the high power objective lens adjust the lens using the fine knob adjustment.
What you should do when the high power objective lens you are using breaks or touches the cover slip, is to report to your teacher for inspection.
An objective lens is found on a microscope. This lens consists of several lenses used to magnify an object and project a larger real image.
When using high power objective lens (40x and 100x) care should be taken, but if the high power objective lens breaks or touches the cover slip, notify the teacher immediately who will inspect the level of damage in order to consider repairs and possible replacement.
Thus, what you should do when the high power objective lens you are using breaks or touches the cover slip, is to report to your teacher for inspection.
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