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Objective Lens
The lens in a microscope closest to the specimen, which collects light and focuses the image into the eyepiece.
Fine Adjustment Knob
A control knob on microscopes used to make precise adjustments to the focus of the specimen being viewed.
Electrical Plug
A device for making an electrical connection between an appliance and the electricity supply.
Objective Lens
The lens in a microscope closest to the specimen, crucial for magnifying the image.
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