Part 1:

1- If an ocular lens has a magnifying power of 15X and the objective lens is 10X what is the total magnification?

2- Identify the part of the microscope with the following functions:

a. Lens that further magnifies the image formed by the objective lens?
b. Concentrates the light before it passes through the specimen?
c. Gives the microscope a firm, steady support?
d. Regulates how much light goes through the specimen?
e. Adjustment knob that gives the microscopist more precise control over the position of the lens?
f. Source of light; and _______
g. Projects a magnified image of the specimen just beneath the ocular?

Part 2:

1- What is the relationship between working distance and magnification?

2- What is the relationship between field of view and magnification?

3- What relationship between depth of field and magnification?

Part 3:

1- Based on observations of the electron micrographs, which type of electron microscope is best for observing internal cell structure?

2- Which electron microscope is best for observing surface features and overall appearance?

3- Identify the appropriate microscope or microscopes:

a. Uses light as an energy source?
b. Image is neither reversed nor inverted?
c. May view living material?
d. Largest depth of field?
e. Must use fixed or dead material
f. Uses a beam of electrons as a source of illumination
g. Can observe the internal structure of a nucleus?
h. Highest resolving power?