Examlex
Highly enriched weapons-grade uranium might consist of exactly 90% U-235 (235.044 amu) , with the remainder being U-238 (238.051 amu) .What is the average atomic mass of this sample of highly enriched uranium? Assume the percentages are exact.
Eyepieces
Optical lenses located at the viewing end of a telescope, microscope, or other optical instruments, through which the user looks.
Magnifying Lens
An optical instrument designed to enlarge the appearance of objects or text, making details more visible to the naked eye.
Microscope
A device used to view objects that are too small to be seen by the naked eye, by magnifying them.
Specimen
A sample taken from a body, such as tissue, blood, or urine, used for analysis or diagnosis.
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