Answer :

you multiply the magnification of the lenses (usually x10) by the magnification of the setting

Answer:

Magnification:

  Magnification means to enlarge the size of object.

In the microscope the real  size of is so small so it is very difficult to see the object.But with the help of magnification a small object can  see so easily by magnifying this.

Generally is measured by multiple of 10x,4x,and 2x it means that the size of object will become ten times,forth time and two time respectively.