Examlex
What is the conjugate acid of HSO4-?
Eyepiece
The lens or group of lenses at the viewing end of a telescope or microscope, through which the observer looks to see the magnified image.
Magnification
The process of enlarging the appearance of an object, typically using lenses or microscopes.
Parfocal Microscope
A microscope designed such that once an object is in focus at one magnification, it remains in focus when the magnification is changed.
Objective Lens
The part of a microscope closest to the object being observed, which focuses light or electrons to create an enlarged image.
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