Microscopy Quiz PM

1. Identify the indicated part of the microscope.

A. Ocular

B. Objective

C. Light source

D. Stage

2. What is the total magnification of a microscope viewing a specimen on the 100X objective and a 7X ocular (numerical aperture=5).

A. 7000 X

B. 70 X

C. 700 X

D. 3500 X

E. 350 X

3. What is the resolving power for a 40X oil immersion lens given the following information, Numerical aperture = 1.5, and light wavelength = 600 nm.

A. 900 nm

B. 100 nm

C. 200 nm

D. 400 nm

E. 10 nm

4. You move the letter e to the left on the scope, watching through the microscope, what direction does the e move?

A. Left

B. Right

C. Inverted

D. Up

E. Down

5. Which is lens would provide the worst resolution?

A. 200 nm

B. 20 nm

C. 250 nm

D. 10 nm

E. 100 nm

6. Which would NOT provide better resolution, longer or shorter wavelengths?

A. Longer

B. Shorter

C. Does not matter