What part of a microscope helps adjust the brightness of an image?
the ocular lense and objectives are found at the top and bottom of what part of a microscope?
when focusing on the lower power, which knob is used to get a clear image?
where are the slides placed on a microscope?
the fine adjustment knob is used to focus an image only on what power(s)?
what should be done when you are using a microscope?
what is the total magnification if the microscope is on low power(20x)
What would be the magnification, if you were using a 40x objective?