Examlex
What occurred in Canada in 2002 regarding the drug ephedra and why?
Ocular Lens
The lens closest to the eye in a microscope or telescope, through which the viewer looks to magnify the image formed by the objective lens.
Objective Lens
The part of a microscope or telescope that is closest to the object being observed, focusing light and creating an initial image.
Oil-Immersion Lens
A microscope lens designed to be used with a drop of oil between the lens and the slide, improving resolution by reducing light refraction.
Fine Focus Knob
A control mechanism on microscopes used to make precise adjustments to the focus, sharpening the image of the specimen.
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