Critique the following definition of magnification given by a student on a microbiology test: “Magnification makes things bigger.”

Curved glass lenses _______light.

a. refract

b. bend

c. magnify

d. both a and b

Which of the following factors is important in making an image appear larger?

a. thickness of the lens

b. curvature of the lens

c. speed of the light passing through the lens

d. all of the above

Immersion oil ________(increases/decreases) the numerical aperture, which ________(increases/decreases) resolution because _______(more/fewer) light rays are involved.

________ refers to differences in intensity between two objects.

The resolving power of a microscope is described as the ability of the microscope to:

If you can only increase one of the following, which would you increase to observe more details of the microscopic specimen?

Fill in the following blanks.

a. 1 μm = ______ m

b. 1= _______ 10⁻⁹ m

c. 1 μm = ______ nm

Calculate the total magnification of the nucleus of a cell being observed through a compound light microscope with a 10x ocular lens and an oil immersion lens.