Lab Microscopes

Question 0

Two basic functions of a microscope.

Answer 0

Magnification and resolving power

Question 1

Two types of microscopes

Answer 1

The dissecting and compound microscope.

Question 2

Magnification

Answer 2

the increase in the apparent size of an object

Question 3

Resolving power

Answer 3

a measure of the clarity of an image; it is the ability of an optical instrument to show two objects as separate

Question 4

Three features of a dissecting microscope.

Answer 4

 You would use a dissecting microscope rather than a compound microscope to view opaque objects or objects that light cannot pass through  Dissecting microscopes have much lower total magnification than compound microscopes  Dissecting microscopes do not invert the image of the item under view

Question 5

Features of a compound microscope.

Answer 5

 Be able to explain & visualize that compound microscopes invert the image of a specimen. (e.g. what does the letter “f” look like under the compound scope?)  The relationship between “depth of field” and magnification is an inverse relationship (as one increases the other decreases)  Know the basic procedures of using the microscope (e.g. only use coarse focus with scanning objective lens; put microscopes away with scanning lens in place & stage lowered; only use lens paper to clean the lenses; etc.)