Question

what is the use of cover glass while observing in microscope? ​

Answer 1

Answer:

This smaller sheet of glass, called a cover slip or cover glass, is usually between 18 and 25 mm on a side. The cover glass serves two purposes: (1) it protects the microscope's objective lens from contacting the specimen, and (2) it creates an even thickness (in wet mounts) for viewing.

I think it is helpful to you