Microscope
The instrument that is used to study cells is a microscope.
Electronic microscope
Microscope is the instrument used in studying cells, allowing scientists to view cells in detail and observe their structure and function. Different types of microscopes, such as light microscopes and electron microscopes, are used depending on the level of detail needed for the study.
There is no instrument in world which measure how small an object is but instruments measure how large an object is .
A microscope would be one instrument used.
well you can use a microscope
flow cytometry
laryngoscope
A microscope is the instrument that uses light and two or more lenses to view cells. The lenses in a microscope help to magnify and focus the light on the sample, allowing us to see the fine details of the cell structure.
Hemocytometer-- An instrument used to count platelets or other blood cells.
A Telescope
telescope